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Finding the Fourth Proportional to 3,865,715.20, 5,798,572.80 and 1,026,265.60

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Solution

The fourth proportional to 3,865,715.20, 5,798,572.80 and 1,026,265.60 is: 1,539,398.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865,715.20 : 5,798,572.80 = 1,026,265.60 : x
  2. Step 2: Convert to fraction form
    3,865,715.20/5,798,572.80 = 1,026,265.60/x
  3. Step 3: Cross multiply
    3,865,715.20x = 5,798,572.80 × 1,026,265.60
  4. Step 4: Simplify right side
    3,865,715.20x = 5,950,875,793,735.68
  5. Step 5: Solve for x
    x = 5,950,875,793,735.68/3,865,715.20
  6. Step 6: Final answer
    x = 1,539,398.40

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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.