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Finding the Fourth Proportional to 695,658.80, 959,563.08 and 477,762.32

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Solution

The fourth proportional to 695,658.80, 959,563.08 and 477,762.32 is: 659,005.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,658.80 : 959,563.08 = 477,762.32 : x
  2. Step 2: Convert to fraction form
    695,658.80/959,563.08 = 477,762.32/x
  3. Step 3: Cross multiply
    695,658.80x = 959,563.08 × 477,762.32
  4. Step 4: Simplify right side
    695,658.80x = 458,443,083,287.15
  5. Step 5: Solve for x
    x = 458,443,083,287.15/695,658.80
  6. Step 6: Final answer
    x = 659,005.66

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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.