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Finding the Fourth Proportional to 965,761.60, 1,449,808.80 and 958,763.20

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Solution

The fourth proportional to 965,761.60, 1,449,808.80 and 958,763.20 is: 1,439,302.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,761.60 : 1,449,808.80 = 958,763.20 : x
  2. Step 2: Convert to fraction form
    965,761.60/1,449,808.80 = 958,763.20/x
  3. Step 3: Cross multiply
    965,761.60x = 1,449,808.80 × 958,763.20
  4. Step 4: Simplify right side
    965,761.60x = 1,390,023,324,476.16
  5. Step 5: Solve for x
    x = 1,390,023,324,476.16/965,761.60
  6. Step 6: Final answer
    x = 1,439,302.75

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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.