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Finding the Fourth Proportional to 534,572.24, 737,709.64 and 319,712.28

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Solution

The fourth proportional to 534,572.24, 737,709.64 and 319,712.28 is: 441,202.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,572.24 : 737,709.64 = 319,712.28 : x
  2. Step 2: Convert to fraction form
    534,572.24/737,709.64 = 319,712.28/x
  3. Step 3: Cross multiply
    534,572.24x = 737,709.64 × 319,712.28
  4. Step 4: Simplify right side
    534,572.24x = 235,854,830,982.38
  5. Step 5: Solve for x
    x = 235,854,830,982.38/534,572.24
  6. Step 6: Final answer
    x = 441,202.92

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Half scale
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Double scale
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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.