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Finding the Fourth Proportional to 693,439.00, 956,927.32 and 387,517.77

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Solution

The fourth proportional to 693,439.00, 956,927.32 and 387,517.77 is: 534,764.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,439.00 : 956,927.32 = 387,517.77 : x
  2. Step 2: Convert to fraction form
    693,439.00/956,927.32 = 387,517.77/x
  3. Step 3: Cross multiply
    693,439.00x = 956,927.32 × 387,517.77
  4. Step 4: Simplify right side
    693,439.00x = 370,826,341,098.48
  5. Step 5: Solve for x
    x = 370,826,341,098.48/693,439.00
  6. Step 6: Final answer
    x = 534,764.18

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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.