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Finding the Fourth Proportional to 587,612.16, 881,281.92 and 287,793.60

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Solution

The fourth proportional to 587,612.16, 881,281.92 and 287,793.60 is: 431,623.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,612.16 : 881,281.92 = 287,793.60 : x
  2. Step 2: Convert to fraction form
    587,612.16/881,281.92 = 287,793.60/x
  3. Step 3: Cross multiply
    587,612.16x = 881,281.92 × 287,793.60
  4. Step 4: Simplify right side
    587,612.16x = 253,627,296,371.71
  5. Step 5: Solve for x
    x = 253,627,296,371.71/587,612.16
  6. Step 6: Final answer
    x = 431,623.63

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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.