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Finding the Fourth Proportional to 489,032.90, 732,565.20 and 329,600.60

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Solution

The fourth proportional to 489,032.90, 732,565.20 and 329,600.60 is: 493,737.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,032.90 : 732,565.20 = 329,600.60 : x
  2. Step 2: Convert to fraction form
    489,032.90/732,565.20 = 329,600.60/x
  3. Step 3: Cross multiply
    489,032.90x = 732,565.20 × 329,600.60
  4. Step 4: Simplify right side
    489,032.90x = 241,453,929,459.12
  5. Step 5: Solve for x
    x = 241,453,929,459.12/489,032.90
  6. Step 6: Final answer
    x = 493,737.60

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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.