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Finding the Fourth Proportional to 997,542.32, 1,373,708.93 and 866,659.44

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Solution

The fourth proportional to 997,542.32, 1,373,708.93 and 866,659.44 is: 1,193,470.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,542.32 : 1,373,708.93 = 866,659.44 : x
  2. Step 2: Convert to fraction form
    997,542.32/1,373,708.93 = 866,659.44/x
  3. Step 3: Cross multiply
    997,542.32x = 1,373,708.93 × 866,659.44
  4. Step 4: Simplify right side
    997,542.32x = 1,190,537,807,663.50
  5. Step 5: Solve for x
    x = 1,190,537,807,663.50/997,542.32
  6. Step 6: Final answer
    x = 1,193,470.98

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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.