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Finding the Fourth Proportional to 587,538.20, 881,307.30 and 558,507.80

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Solution

The fourth proportional to 587,538.20, 881,307.30 and 558,507.80 is: 837,761.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,538.20 : 881,307.30 = 558,507.80 : x
  2. Step 2: Convert to fraction form
    587,538.20/881,307.30 = 558,507.80/x
  3. Step 3: Cross multiply
    587,538.20x = 881,307.30 × 558,507.80
  4. Step 4: Simplify right side
    587,538.20x = 492,217,001,246.94
  5. Step 5: Solve for x
    x = 492,217,001,246.94/587,538.20
  6. Step 6: Final answer
    x = 837,761.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.