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Finding the Fourth Proportional to 555,909.72, 767,202.60 and 465,105.48

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Solution

The fourth proportional to 555,909.72, 767,202.60 and 465,105.48 is: 641,885.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,909.72 : 767,202.60 = 465,105.48 : x
  2. Step 2: Convert to fraction form
    555,909.72/767,202.60 = 465,105.48/x
  3. Step 3: Cross multiply
    555,909.72x = 767,202.60 × 465,105.48
  4. Step 4: Simplify right side
    555,909.72x = 356,830,133,530.25
  5. Step 5: Solve for x
    x = 356,830,133,530.25/555,909.72
  6. Step 6: Final answer
    x = 641,885.04

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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.