Home / 657,129.20-986,082.60-433,137.20

Finding the Fourth Proportional to 657,129.20, 986,082.60 and 433,137.20

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Solution

The fourth proportional to 657,129.20, 986,082.60 and 433,137.20 is: 649,962.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,129.20 : 986,082.60 = 433,137.20 : x
  2. Step 2: Convert to fraction form
    657,129.20/986,082.60 = 433,137.20/x
  3. Step 3: Cross multiply
    657,129.20x = 986,082.60 × 433,137.20
  4. Step 4: Simplify right side
    657,129.20x = 427,109,056,332.72
  5. Step 5: Solve for x
    x = 427,109,056,332.72/657,129.20
  6. Step 6: Final answer
    x = 649,962.07

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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.