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Finding the Fourth Proportional to 547,383.14, 755,174.22 and 317,901.20

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Solution

The fourth proportional to 547,383.14, 755,174.22 and 317,901.20 is: 438,579.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,383.14 : 755,174.22 = 317,901.20 : x
  2. Step 2: Convert to fraction form
    547,383.14/755,174.22 = 317,901.20/x
  3. Step 3: Cross multiply
    547,383.14x = 755,174.22 × 317,901.20
  4. Step 4: Simplify right side
    547,383.14x = 240,070,790,747.06
  5. Step 5: Solve for x
    x = 240,070,790,747.06/547,383.14
  6. Step 6: Final answer
    x = 438,579.07

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1.5x scale

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.