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Finding the Fourth Proportional to 492,264.80, 738,397.20 and 489,154.40

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Solution

The fourth proportional to 492,264.80, 738,397.20 and 489,154.40 is: 733,731.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,264.80 : 738,397.20 = 489,154.40 : x
  2. Step 2: Convert to fraction form
    492,264.80/738,397.20 = 489,154.40/x
  3. Step 3: Cross multiply
    492,264.80x = 738,397.20 × 489,154.40
  4. Step 4: Simplify right side
    492,264.80x = 361,190,239,327.68
  5. Step 5: Solve for x
    x = 361,190,239,327.68/492,264.80
  6. Step 6: Final answer
    x = 733,731.60

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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.