Home / 657,126.20-986,078.10-433,134.20

Finding the Fourth Proportional to 657,126.20, 986,078.10 and 433,134.20

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Solution

The fourth proportional to 657,126.20, 986,078.10 and 433,134.20 is: 649,957.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,126.20 : 986,078.10 = 433,134.20 : x
  2. Step 2: Convert to fraction form
    657,126.20/986,078.10 = 433,134.20/x
  3. Step 3: Cross multiply
    657,126.20x = 986,078.10 × 433,134.20
  4. Step 4: Simplify right side
    657,126.20x = 427,104,148,981.02
  5. Step 5: Solve for x
    x = 427,104,148,981.02/657,126.20
  6. Step 6: Final answer
    x = 649,957.57

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Double scale
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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.