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Finding the Fourth Proportional to 647,254.06, 970,881.78 and 349,627.06

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Solution

The fourth proportional to 647,254.06, 970,881.78 and 349,627.06 is: 524,440.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,254.06 : 970,881.78 = 349,627.06 : x
  2. Step 2: Convert to fraction form
    647,254.06/970,881.78 = 349,627.06/x
  3. Step 3: Cross multiply
    647,254.06x = 970,881.78 × 349,627.06
  4. Step 4: Simplify right side
    647,254.06x = 339,446,542,348.97
  5. Step 5: Solve for x
    x = 339,446,542,348.97/647,254.06
  6. Step 6: Final answer
    x = 524,440.96

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.