Home / 928,689.40-1,393,034.10-609,824.80

Finding the Fourth Proportional to 928,689.40, 1,393,034.10 and 609,824.80

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Solution

The fourth proportional to 928,689.40, 1,393,034.10 and 609,824.80 is: 914,737.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,689.40 : 1,393,034.10 = 609,824.80 : x
  2. Step 2: Convert to fraction form
    928,689.40/1,393,034.10 = 609,824.80/x
  3. Step 3: Cross multiply
    928,689.40x = 1,393,034.10 × 609,824.80
  4. Step 4: Simplify right side
    928,689.40x = 849,506,741,425.68
  5. Step 5: Solve for x
    x = 849,506,741,425.68/928,689.40
  6. Step 6: Final answer
    x = 914,737.20

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Double scale
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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.