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Finding the Fourth Proportional to 732,648.40, 1,097,660.40 and 627,672.40

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Solution

The fourth proportional to 732,648.40, 1,097,660.40 and 627,672.40 is: 940,384.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    732,648.40 : 1,097,660.40 = 627,672.40 : x
  2. Step 2: Convert to fraction form
    732,648.40/1,097,660.40 = 627,672.40/x
  3. Step 3: Cross multiply
    732,648.40x = 1,097,660.40 × 627,672.40
  4. Step 4: Simplify right side
    732,648.40x = 688,971,137,652.96
  5. Step 5: Solve for x
    x = 688,971,137,652.96/732,648.40
  6. Step 6: Final answer
    x = 940,384.42

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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.