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Finding the Fourth Proportional to 547,841.73, 756,096.66 and 315,263.88

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Solution

The fourth proportional to 547,841.73, 756,096.66 and 315,263.88 is: 435,107.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,841.73 : 756,096.66 = 315,263.88 : x
  2. Step 2: Convert to fraction form
    547,841.73/756,096.66 = 315,263.88/x
  3. Step 3: Cross multiply
    547,841.73x = 756,096.66 × 315,263.88
  4. Step 4: Simplify right side
    547,841.73x = 238,369,966,686.64
  5. Step 5: Solve for x
    x = 238,369,966,686.64/547,841.73
  6. Step 6: Final answer
    x = 435,107.36

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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.