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Finding the Fourth Proportional to 1,581,602.80, 2,372,404.20 and 1,508,119.60

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Solution

The fourth proportional to 1,581,602.80, 2,372,404.20 and 1,508,119.60 is: 2,262,179.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,602.80 : 2,372,404.20 = 1,508,119.60 : x
  2. Step 2: Convert to fraction form
    1,581,602.80/2,372,404.20 = 1,508,119.60/x
  3. Step 3: Cross multiply
    1,581,602.80x = 2,372,404.20 × 1,508,119.60
  4. Step 4: Simplify right side
    1,581,602.80x = 3,577,869,273,142.32
  5. Step 5: Solve for x
    x = 3,577,869,273,142.32/1,581,602.80
  6. Step 6: Final answer
    x = 2,262,179.40

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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.