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Finding the Fourth Proportional to 1,253.92, 1,881.33 and 560.53

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Solution

The fourth proportional to 1,253.92, 1,881.33 and 560.53 is: 841.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253.92 : 1,881.33 = 560.53 : x
  2. Step 2: Convert to fraction form
    1,253.92/1,881.33 = 560.53/x
  3. Step 3: Cross multiply
    1,253.92x = 1,881.33 × 560.53
  4. Step 4: Simplify right side
    1,253.92x = 1,054,541.90
  5. Step 5: Solve for x
    x = 1,054,541.90/1,253.92
  6. Step 6: Final answer
    x = 841.00

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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.