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Finding the Fourth Proportional to 1,047.38, 1,444.05 and 654.26

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Solution

The fourth proportional to 1,047.38, 1,444.05 and 654.26 is: 902.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047.38 : 1,444.05 = 654.26 : x
  2. Step 2: Convert to fraction form
    1,047.38/1,444.05 = 654.26/x
  3. Step 3: Cross multiply
    1,047.38x = 1,444.05 × 654.26
  4. Step 4: Simplify right side
    1,047.38x = 944,784.15
  5. Step 5: Solve for x
    x = 944,784.15/1,047.38
  6. Step 6: Final answer
    x = 902.05

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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.