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Finding the Fourth Proportional to 474,404.49, 655,077.11 and 338,854.23

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Solution

The fourth proportional to 474,404.49, 655,077.11 and 338,854.23 is: 467,903.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,404.49 : 655,077.11 = 338,854.23 : x
  2. Step 2: Convert to fraction form
    474,404.49/655,077.11 = 338,854.23/x
  3. Step 3: Cross multiply
    474,404.49x = 655,077.11 × 338,854.23
  4. Step 4: Simplify right side
    474,404.49x = 221,975,648,005.40
  5. Step 5: Solve for x
    x = 221,975,648,005.40/474,404.49
  6. Step 6: Final answer
    x = 467,903.77

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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.