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Finding the Fourth Proportional to 1,134.40, 1,560.92 and 1,024

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Solution

The fourth proportional to 1,134.40, 1,560.92 and 1,024 is: 1,409.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.40 : 1,560.92 = 1,024 : x
  2. Step 2: Convert to fraction form
    1,134.40/1,560.92 = 1,024/x
  3. Step 3: Cross multiply
    1,134.40x = 1,560.92 × 1,024
  4. Step 4: Simplify right side
    1,134.40x = 1,598,382.08
  5. Step 5: Solve for x
    x = 1,598,382.08/1,134.40
  6. Step 6: Final answer
    x = 1,409.01

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Double scale
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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.