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Finding the Fourth Proportional to 547,113.62, 755,013.91 and 317,727.31

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Solution

The fourth proportional to 547,113.62, 755,013.91 and 317,727.31 is: 438,462.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,113.62 : 755,013.91 = 317,727.31 : x
  2. Step 2: Convert to fraction form
    547,113.62/755,013.91 = 317,727.31/x
  3. Step 3: Cross multiply
    547,113.62x = 755,013.91 × 317,727.31
  4. Step 4: Simplify right side
    547,113.62x = 239,888,535,955.03
  5. Step 5: Solve for x
    x = 239,888,535,955.03/547,113.62
  6. Step 6: Final answer
    x = 438,462.01

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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.