Home / 663,554,254.40-995,331,381.60-649,398,478.40

Finding the Fourth Proportional to 663,554,254.40, 995,331,381.60 and 649,398,478.40

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Solution

The fourth proportional to 663,554,254.40, 995,331,381.60 and 649,398,478.40 is: 974,097,717.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,554,254.40 : 995,331,381.60 = 649,398,478.40 : x
  2. Step 2: Convert to fraction form
    663,554,254.40/995,331,381.60 = 649,398,478.40/x
  3. Step 3: Cross multiply
    663,554,254.40x = 995,331,381.60 × 649,398,478.40
  4. Step 4: Simplify right side
    663,554,254.40x = 646,366,684,714,809,728
  5. Step 5: Solve for x
    x = 646,366,684,714,809,728/663,554,254.40
  6. Step 6: Final answer
    x = 974,097,717.60

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Half scale
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Double scale
Find fourth proportional to 663,554,255.40, 995,331,383.10 and 649,398,479.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.