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Finding the Fourth Proportional to 461,962.20, 691,631.10 and 461,962.20

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Solution

The fourth proportional to 461,962.20, 691,631.10 and 461,962.20 is: 691,631.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,962.20 : 691,631.10 = 461,962.20 : x
  2. Step 2: Convert to fraction form
    461,962.20/691,631.10 = 461,962.20/x
  3. Step 3: Cross multiply
    461,962.20x = 691,631.10 × 461,962.20
  4. Step 4: Simplify right side
    461,962.20x = 319,507,424,544.42
  5. Step 5: Solve for x
    x = 319,507,424,544.42/461,962.20
  6. Step 6: Final answer
    x = 691,631.10

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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.