Home / 715,050.36-986,773.73-392,752.17

Finding the Fourth Proportional to 715,050.36, 986,773.73 and 392,752.17

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Solution

The fourth proportional to 715,050.36, 986,773.73 and 392,752.17 is: 542,000.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,050.36 : 986,773.73 = 392,752.17 : x
  2. Step 2: Convert to fraction form
    715,050.36/986,773.73 = 392,752.17/x
  3. Step 3: Cross multiply
    715,050.36x = 986,773.73 × 392,752.17
  4. Step 4: Simplify right side
    715,050.36x = 387,557,521,792.73
  5. Step 5: Solve for x
    x = 387,557,521,792.73/715,050.36
  6. Step 6: Final answer
    x = 542,000.32

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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.