Home / 534,139.20-799,912.80-284,270.40

Finding the Fourth Proportional to 534,139.20, 799,912.80 and 284,270.40

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Solution

The fourth proportional to 534,139.20, 799,912.80 and 284,270.40 is: 425,715.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,139.20 : 799,912.80 = 284,270.40 : x
  2. Step 2: Convert to fraction form
    534,139.20/799,912.80 = 284,270.40/x
  3. Step 3: Cross multiply
    534,139.20x = 799,912.80 × 284,270.40
  4. Step 4: Simplify right side
    534,139.20x = 227,391,531,621.12
  5. Step 5: Solve for x
    x = 227,391,531,621.12/534,139.20
  6. Step 6: Final answer
    x = 425,715.87

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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.