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Finding the Fourth Proportional to 432,701.80, 649,052.70 and 283,402.60

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Solution

The fourth proportional to 432,701.80, 649,052.70 and 283,402.60 is: 425,103.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,701.80 : 649,052.70 = 283,402.60 : x
  2. Step 2: Convert to fraction form
    432,701.80/649,052.70 = 283,402.60/x
  3. Step 3: Cross multiply
    432,701.80x = 649,052.70 × 283,402.60
  4. Step 4: Simplify right side
    432,701.80x = 183,943,222,717.02
  5. Step 5: Solve for x
    x = 183,943,222,717.02/432,701.80
  6. Step 6: Final answer
    x = 425,103.90

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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.