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Finding the Fourth Proportional to 1,668,507.36, 2,502,761 and 769,683.17

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Solution

The fourth proportional to 1,668,507.36, 2,502,761 and 769,683.17 is: 1,154,524.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668,507.36 : 2,502,761 = 769,683.17 : x
  2. Step 2: Convert to fraction form
    1,668,507.36/2,502,761 = 769,683.17/x
  3. Step 3: Cross multiply
    1,668,507.36x = 2,502,761 × 769,683.17
  4. Step 4: Simplify right side
    1,668,507.36x = 1,926,333,007,718.57
  5. Step 5: Solve for x
    x = 1,926,333,007,718.57/1,668,507.36
  6. Step 6: Final answer
    x = 1,154,524.73

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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.