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Finding the Fourth Proportional to 418,639.77, 577,705.26 and 237,363.84

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Solution

The fourth proportional to 418,639.77, 577,705.26 and 237,363.84 is: 327,552.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,639.77 : 577,705.26 = 237,363.84 : x
  2. Step 2: Convert to fraction form
    418,639.77/577,705.26 = 237,363.84/x
  3. Step 3: Cross multiply
    418,639.77x = 577,705.26 × 237,363.84
  4. Step 4: Simplify right side
    418,639.77x = 137,126,338,901.80
  5. Step 5: Solve for x
    x = 137,126,338,901.80/418,639.77
  6. Step 6: Final answer
    x = 327,552.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.