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Finding the Fourth Proportional to 1,329,574.50, 1,834,817.67 and 725,962.50

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Solution

The fourth proportional to 1,329,574.50, 1,834,817.67 and 725,962.50 is: 1,001,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,574.50 : 1,834,817.67 = 725,962.50 : x
  2. Step 2: Convert to fraction form
    1,329,574.50/1,834,817.67 = 725,962.50/x
  3. Step 3: Cross multiply
    1,329,574.50x = 1,834,817.67 × 725,962.50
  4. Step 4: Simplify right side
    1,329,574.50x = 1,332,008,822,757.38
  5. Step 5: Solve for x
    x = 1,332,008,822,757.38/1,329,574.50
  6. Step 6: Final answer
    x = 1,001,830.90

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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.