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Finding the Fourth Proportional to 461,927.20, 647,631.20 and 461,927.20

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Solution

The fourth proportional to 461,927.20, 647,631.20 and 461,927.20 is: 647,631.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,927.20 : 647,631.20 = 461,927.20 : x
  2. Step 2: Convert to fraction form
    461,927.20/647,631.20 = 461,927.20/x
  3. Step 3: Cross multiply
    461,927.20x = 647,631.20 × 461,927.20
  4. Step 4: Simplify right side
    461,927.20x = 299,158,466,848.64
  5. Step 5: Solve for x
    x = 299,158,466,848.64/461,927.20
  6. Step 6: Final answer
    x = 647,631.20

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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.