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Finding the Fourth Proportional to 667,531.10, 936,905.50 and 667,531.10

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Solution

The fourth proportional to 667,531.10, 936,905.50 and 667,531.10 is: 936,905.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,531.10 : 936,905.50 = 667,531.10 : x
  2. Step 2: Convert to fraction form
    667,531.10/936,905.50 = 667,531.10/x
  3. Step 3: Cross multiply
    667,531.10x = 936,905.50 × 667,531.10
  4. Step 4: Simplify right side
    667,531.10x = 625,413,559,011.05
  5. Step 5: Solve for x
    x = 625,413,559,011.05/667,531.10
  6. Step 6: Final answer
    x = 936,905.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.