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Finding the Fourth Proportional to 1,668,511.36, 2,502,767 and 769,687.17

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Solution

The fourth proportional to 1,668,511.36, 2,502,767 and 769,687.17 is: 1,154,530.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668,511.36 : 2,502,767 = 769,687.17 : x
  2. Step 2: Convert to fraction form
    1,668,511.36/2,502,767 = 769,687.17/x
  3. Step 3: Cross multiply
    1,668,511.36x = 2,502,767 × 769,687.17
  4. Step 4: Simplify right side
    1,668,511.36x = 1,926,347,649,399.39
  5. Step 5: Solve for x
    x = 1,926,347,649,399.39/1,668,511.36
  6. Step 6: Final answer
    x = 1,154,530.74

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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.