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Finding the Fourth Proportional to 486,092.40, 727,972.20 and 236,482.80

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Solution

The fourth proportional to 486,092.40, 727,972.20 and 236,482.80 is: 354,156.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,092.40 : 727,972.20 = 236,482.80 : x
  2. Step 2: Convert to fraction form
    486,092.40/727,972.20 = 236,482.80/x
  3. Step 3: Cross multiply
    486,092.40x = 727,972.20 × 236,482.80
  4. Step 4: Simplify right side
    486,092.40x = 172,152,904,178.16
  5. Step 5: Solve for x
    x = 172,152,904,178.16/486,092.40
  6. Step 6: Final answer
    x = 354,156.75

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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.