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Finding the Fourth Proportional to 1,047.04, 1,444.17 and 653.92

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Solution

The fourth proportional to 1,047.04, 1,444.17 and 653.92 is: 901.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047.04 : 1,444.17 = 653.92 : x
  2. Step 2: Convert to fraction form
    1,047.04/1,444.17 = 653.92/x
  3. Step 3: Cross multiply
    1,047.04x = 1,444.17 × 653.92
  4. Step 4: Simplify right side
    1,047.04x = 944,371.65
  5. Step 5: Solve for x
    x = 944,371.65/1,047.04
  6. Step 6: Final answer
    x = 901.94

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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.