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Finding the Fourth Proportional to 508,712.06, 702,025.38 and 317,836.17

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Solution

The fourth proportional to 508,712.06, 702,025.38 and 317,836.17 is: 438,615.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,712.06 : 702,025.38 = 317,836.17 : x
  2. Step 2: Convert to fraction form
    508,712.06/702,025.38 = 317,836.17/x
  3. Step 3: Cross multiply
    508,712.06x = 702,025.38 × 317,836.17
  4. Step 4: Simplify right side
    508,712.06x = 223,129,058,022.00
  5. Step 5: Solve for x
    x = 223,129,058,022.00/508,712.06
  6. Step 6: Final answer
    x = 438,615.62

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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.