Home / 2,172,861.60-3,259,276.20-656,541.60

Finding the Fourth Proportional to 2,172,861.60, 3,259,276.20 and 656,541.60

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Solution

The fourth proportional to 2,172,861.60, 3,259,276.20 and 656,541.60 is: 984,807.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172,861.60 : 3,259,276.20 = 656,541.60 : x
  2. Step 2: Convert to fraction form
    2,172,861.60/3,259,276.20 = 656,541.60/x
  3. Step 3: Cross multiply
    2,172,861.60x = 3,259,276.20 × 656,541.60
  4. Step 4: Simplify right side
    2,172,861.60x = 2,139,850,411,189.92
  5. Step 5: Solve for x
    x = 2,139,850,411,189.92/2,172,861.60
  6. Step 6: Final answer
    x = 984,807.51

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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.