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Finding the Fourth Proportional to 514,488.48, 771,761.88 and 159,552.96

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Solution

The fourth proportional to 514,488.48, 771,761.88 and 159,552.96 is: 239,338.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,488.48 : 771,761.88 = 159,552.96 : x
  2. Step 2: Convert to fraction form
    514,488.48/771,761.88 = 159,552.96/x
  3. Step 3: Cross multiply
    514,488.48x = 771,761.88 × 159,552.96
  4. Step 4: Simplify right side
    514,488.48x = 123,136,892,369.17
  5. Step 5: Solve for x
    x = 123,136,892,369.17/514,488.48
  6. Step 6: Final answer
    x = 239,338.48

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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.