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Finding the Fourth Proportional to 966,406.40, 1,449,609.60 and 896,422.40

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Solution

The fourth proportional to 966,406.40, 1,449,609.60 and 896,422.40 is: 1,344,633.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,406.40 : 1,449,609.60 = 896,422.40 : x
  2. Step 2: Convert to fraction form
    966,406.40/1,449,609.60 = 896,422.40/x
  3. Step 3: Cross multiply
    966,406.40x = 1,449,609.60 × 896,422.40
  4. Step 4: Simplify right side
    966,406.40x = 1,299,462,516,695.04
  5. Step 5: Solve for x
    x = 1,299,462,516,695.04/966,406.40
  6. Step 6: Final answer
    x = 1,344,633.60

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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.