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Finding the Fourth Proportional to 5,280,773.60, 7,938,073.20 and 4,906,359.20

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Solution

The fourth proportional to 5,280,773.60, 7,938,073.20 and 4,906,359.20 is: 7,375,252.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280,773.60 : 7,938,073.20 = 4,906,359.20 : x
  2. Step 2: Convert to fraction form
    5,280,773.60/7,938,073.20 = 4,906,359.20/x
  3. Step 3: Cross multiply
    5,280,773.60x = 7,938,073.20 × 4,906,359.20
  4. Step 4: Simplify right side
    5,280,773.60x = 38,947,038,475,093.45
  5. Step 5: Solve for x
    x = 38,947,038,475,093.45/5,280,773.60
  6. Step 6: Final answer
    x = 7,375,252.46

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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.