Home / 513,932.32-709,222.31-284,490.05

Finding the Fourth Proportional to 513,932.32, 709,222.31 and 284,490.05

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Solution

The fourth proportional to 513,932.32, 709,222.31 and 284,490.05 is: 392,593.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,932.32 : 709,222.31 = 284,490.05 : x
  2. Step 2: Convert to fraction form
    513,932.32/709,222.31 = 284,490.05/x
  3. Step 3: Cross multiply
    513,932.32x = 709,222.31 × 284,490.05
  4. Step 4: Simplify right side
    513,932.32x = 201,766,687,725.85
  5. Step 5: Solve for x
    x = 201,766,687,725.85/513,932.32
  6. Step 6: Final answer
    x = 392,593.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.