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Finding the Fourth Proportional to 439,230.76, 606,138.42 and 238,026.76

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Solution

The fourth proportional to 439,230.76, 606,138.42 and 238,026.76 is: 328,476.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,230.76 : 606,138.42 = 238,026.76 : x
  2. Step 2: Convert to fraction form
    439,230.76/606,138.42 = 238,026.76/x
  3. Step 3: Cross multiply
    439,230.76x = 606,138.42 × 238,026.76
  4. Step 4: Simplify right side
    439,230.76x = 144,277,164,224.12
  5. Step 5: Solve for x
    x = 144,277,164,224.12/439,230.76
  6. Step 6: Final answer
    x = 328,476.91

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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.