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Finding the Fourth Proportional to 537,164.80, 804,872.40 and 395,447.20

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Solution

The fourth proportional to 537,164.80, 804,872.40 and 395,447.20 is: 592,526.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,164.80 : 804,872.40 = 395,447.20 : x
  2. Step 2: Convert to fraction form
    537,164.80/804,872.40 = 395,447.20/x
  3. Step 3: Cross multiply
    537,164.80x = 804,872.40 × 395,447.20
  4. Step 4: Simplify right side
    537,164.80x = 318,284,536,937.28
  5. Step 5: Solve for x
    x = 318,284,536,937.28/537,164.80
  6. Step 6: Final answer
    x = 592,526.79

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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.