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Finding the Fourth Proportional to 343,837.90, 514,772.70 and 304,471.90

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Solution

The fourth proportional to 343,837.90, 514,772.70 and 304,471.90 is: 455,836.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,837.90 : 514,772.70 = 304,471.90 : x
  2. Step 2: Convert to fraction form
    343,837.90/514,772.70 = 304,471.90/x
  3. Step 3: Cross multiply
    343,837.90x = 514,772.70 × 304,471.90
  4. Step 4: Simplify right side
    343,837.90x = 156,733,822,037.13
  5. Step 5: Solve for x
    x = 156,733,822,037.13/343,837.90
  6. Step 6: Final answer
    x = 455,836.38

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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.