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Finding the Fourth Proportional to 907,616.40, 1,361,424.60 and 866,282.10

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Solution

The fourth proportional to 907,616.40, 1,361,424.60 and 866,282.10 is: 1,299,423.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,616.40 : 1,361,424.60 = 866,282.10 : x
  2. Step 2: Convert to fraction form
    907,616.40/1,361,424.60 = 866,282.10/x
  3. Step 3: Cross multiply
    907,616.40x = 1,361,424.60 × 866,282.10
  4. Step 4: Simplify right side
    907,616.40x = 1,179,377,761,479.66
  5. Step 5: Solve for x
    x = 1,179,377,761,479.66/907,616.40
  6. Step 6: Final answer
    x = 1,299,423.15

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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.