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Finding the Fourth Proportional to 695,517.86, 961,927.72 and 623,871.74

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Solution

The fourth proportional to 695,517.86, 961,927.72 and 623,871.74 is: 862,838.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,517.86 : 961,927.72 = 623,871.74 : x
  2. Step 2: Convert to fraction form
    695,517.86/961,927.72 = 623,871.74/x
  3. Step 3: Cross multiply
    695,517.86x = 961,927.72 × 623,871.74
  4. Step 4: Simplify right side
    695,517.86x = 600,119,515,620.99
  5. Step 5: Solve for x
    x = 600,119,515,620.99/695,517.86
  6. Step 6: Final answer
    x = 862,838.40

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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.