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Finding the Fourth Proportional to 566,648.76, 781,978.14 and 324,940.44

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Solution

The fourth proportional to 566,648.76, 781,978.14 and 324,940.44 is: 448,419.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,648.76 : 781,978.14 = 324,940.44 : x
  2. Step 2: Convert to fraction form
    566,648.76/781,978.14 = 324,940.44/x
  3. Step 3: Cross multiply
    566,648.76x = 781,978.14 × 324,940.44
  4. Step 4: Simplify right side
    566,648.76x = 254,096,320,881.98
  5. Step 5: Solve for x
    x = 254,096,320,881.98/566,648.76
  6. Step 6: Final answer
    x = 448,419.44

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Double scale
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Similar ratio
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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.