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Finding the Fourth Proportional to 418,640.78, 577,706.83 and 237,364.96

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Solution

The fourth proportional to 418,640.78, 577,706.83 and 237,364.96 is: 327,553.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,640.78 : 577,706.83 = 237,364.96 : x
  2. Step 2: Convert to fraction form
    418,640.78/577,706.83 = 237,364.96/x
  3. Step 3: Cross multiply
    418,640.78x = 577,706.83 × 237,364.96
  4. Step 4: Simplify right side
    418,640.78x = 137,127,358,594.68
  5. Step 5: Solve for x
    x = 137,127,358,594.68/418,640.78
  6. Step 6: Final answer
    x = 327,553.75

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1.5x scale

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.