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Finding the Fourth Proportional to 334,585.20, 501,877.80 and 319,033.20

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Solution

The fourth proportional to 334,585.20, 501,877.80 and 319,033.20 is: 478,549.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,585.20 : 501,877.80 = 319,033.20 : x
  2. Step 2: Convert to fraction form
    334,585.20/501,877.80 = 319,033.20/x
  3. Step 3: Cross multiply
    334,585.20x = 501,877.80 × 319,033.20
  4. Step 4: Simplify right side
    334,585.20x = 160,115,680,542.96
  5. Step 5: Solve for x
    x = 160,115,680,542.96/334,585.20
  6. Step 6: Final answer
    x = 478,549.80

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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.