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Finding the Fourth Proportional to 516,999.06, 713,371.50 and 287,526.24

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Solution

The fourth proportional to 516,999.06, 713,371.50 and 287,526.24 is: 396,737.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,999.06 : 713,371.50 = 287,526.24 : x
  2. Step 2: Convert to fraction form
    516,999.06/713,371.50 = 287,526.24/x
  3. Step 3: Cross multiply
    516,999.06x = 713,371.50 × 287,526.24
  4. Step 4: Simplify right side
    516,999.06x = 205,113,025,118.16
  5. Step 5: Solve for x
    x = 205,113,025,118.16/516,999.06
  6. Step 6: Final answer
    x = 396,737.71

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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.