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Finding the Fourth Proportional to 1,332.74, 1,999.35 and 602.66

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Solution

The fourth proportional to 1,332.74, 1,999.35 and 602.66 is: 904.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332.74 : 1,999.35 = 602.66 : x
  2. Step 2: Convert to fraction form
    1,332.74/1,999.35 = 602.66/x
  3. Step 3: Cross multiply
    1,332.74x = 1,999.35 × 602.66
  4. Step 4: Simplify right side
    1,332.74x = 1,204,928.27
  5. Step 5: Solve for x
    x = 1,204,928.27/1,332.74
  6. Step 6: Final answer
    x = 904.10

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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.