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Finding the Fourth Proportional to 351,507.20, 527,260.80 and 141,036.80

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Solution

The fourth proportional to 351,507.20, 527,260.80 and 141,036.80 is: 211,555.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,507.20 : 527,260.80 = 141,036.80 : x
  2. Step 2: Convert to fraction form
    351,507.20/527,260.80 = 141,036.80/x
  3. Step 3: Cross multiply
    351,507.20x = 527,260.80 × 141,036.80
  4. Step 4: Simplify right side
    351,507.20x = 74,363,175,997.44
  5. Step 5: Solve for x
    x = 74,363,175,997.44/351,507.20
  6. Step 6: Final answer
    x = 211,555.20

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1.5x scale

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.