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Finding the Fourth Proportional to 814,239.01, 1,223,267.18 and 768,227.57

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Solution

The fourth proportional to 814,239.01, 1,223,267.18 and 768,227.57 is: 1,154,142.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,239.01 : 1,223,267.18 = 768,227.57 : x
  2. Step 2: Convert to fraction form
    814,239.01/1,223,267.18 = 768,227.57/x
  3. Step 3: Cross multiply
    814,239.01x = 1,223,267.18 × 768,227.57
  4. Step 4: Simplify right side
    814,239.01x = 939,747,573,152.15
  5. Step 5: Solve for x
    x = 939,747,573,152.15/814,239.01
  6. Step 6: Final answer
    x = 1,154,142.16

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.