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Finding the Fourth Proportional to 587,403.90, 879,793.65 and 482,427.90

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Solution

The fourth proportional to 587,403.90, 879,793.65 and 482,427.90 is: 722,564.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,403.90 : 879,793.65 = 482,427.90 : x
  2. Step 2: Convert to fraction form
    587,403.90/879,793.65 = 482,427.90/x
  3. Step 3: Cross multiply
    587,403.90x = 879,793.65 × 482,427.90
  4. Step 4: Simplify right side
    587,403.90x = 424,437,003,002.84
  5. Step 5: Solve for x
    x = 424,437,003,002.84/587,403.90
  6. Step 6: Final answer
    x = 722,564.16

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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.