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Finding the Fourth Proportional to 404,384, 606,550.40 and 157,931.04

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Solution

The fourth proportional to 404,384, 606,550.40 and 157,931.04 is: 236,886.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,384 : 606,550.40 = 157,931.04 : x
  2. Step 2: Convert to fraction form
    404,384/606,550.40 = 157,931.04/x
  3. Step 3: Cross multiply
    404,384x = 606,550.40 × 157,931.04
  4. Step 4: Simplify right side
    404,384x = 95,793,135,484.42
  5. Step 5: Solve for x
    x = 95,793,135,484.42/404,384
  6. Step 6: Final answer
    x = 236,886.56

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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.