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Finding the Fourth Proportional to 547,052.90, 754,337.86 and 355,711.46

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Solution

The fourth proportional to 547,052.90, 754,337.86 and 355,711.46 is: 490,494.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,052.90 : 754,337.86 = 355,711.46 : x
  2. Step 2: Convert to fraction form
    547,052.90/754,337.86 = 355,711.46/x
  3. Step 3: Cross multiply
    547,052.90x = 754,337.86 × 355,711.46
  4. Step 4: Simplify right side
    547,052.90x = 268,326,621,513.88
  5. Step 5: Solve for x
    x = 268,326,621,513.88/547,052.90
  6. Step 6: Final answer
    x = 490,494.83

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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.