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Finding the Fourth Proportional to 668,146.80, 1,001,053.80 and 574,834.80

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Solution

The fourth proportional to 668,146.80, 1,001,053.80 and 574,834.80 is: 861,248.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,146.80 : 1,001,053.80 = 574,834.80 : x
  2. Step 2: Convert to fraction form
    668,146.80/1,001,053.80 = 574,834.80/x
  3. Step 3: Cross multiply
    668,146.80x = 1,001,053.80 × 574,834.80
  4. Step 4: Simplify right side
    668,146.80x = 575,440,560,912.24
  5. Step 5: Solve for x
    x = 575,440,560,912.24/668,146.80
  6. Step 6: Final answer
    x = 861,248.70

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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.