Home / 663,554,315.40-995,331,473.10-649,398,539.40

Finding the Fourth Proportional to 663,554,315.40, 995,331,473.10 and 649,398,539.40

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Solution

The fourth proportional to 663,554,315.40, 995,331,473.10 and 649,398,539.40 is: 974,097,809.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,554,315.40 : 995,331,473.10 = 649,398,539.40 : x
  2. Step 2: Convert to fraction form
    663,554,315.40/995,331,473.10 = 649,398,539.40/x
  3. Step 3: Cross multiply
    663,554,315.40x = 995,331,473.10 × 649,398,539.40
  4. Step 4: Simplify right side
    663,554,315.40x = 646,366,804,849,990,400
  5. Step 5: Solve for x
    x = 646,366,804,849,990,400/663,554,315.40
  6. Step 6: Final answer
    x = 974,097,809.10

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Double scale
Find fourth proportional to 663,554,316.40, 995,331,474.60 and 649,398,540.40
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.