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Finding the Fourth Proportional to 1,060.59, 1,463.76 and 667.47

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Solution

The fourth proportional to 1,060.59, 1,463.76 and 667.47 is: 921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.59 : 1,463.76 = 667.47 : x
  2. Step 2: Convert to fraction form
    1,060.59/1,463.76 = 667.47/x
  3. Step 3: Cross multiply
    1,060.59x = 1,463.76 × 667.47
  4. Step 4: Simplify right side
    1,060.59x = 977,015.89
  5. Step 5: Solve for x
    x = 977,015.89/1,060.59
  6. Step 6: Final answer
    x = 921.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.