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Finding the Fourth Proportional to 1,132.70, 1,697.58 and 473.83

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Solution

The fourth proportional to 1,132.70, 1,697.58 and 473.83 is: 710.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.70 : 1,697.58 = 473.83 : x
  2. Step 2: Convert to fraction form
    1,132.70/1,697.58 = 473.83/x
  3. Step 3: Cross multiply
    1,132.70x = 1,697.58 × 473.83
  4. Step 4: Simplify right side
    1,132.70x = 804,360.09
  5. Step 5: Solve for x
    x = 804,360.09/1,132.70
  6. Step 6: Final answer
    x = 710.13

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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.