Home / 1,930,585.55-2,664,208.46-1,071,143.78

Finding the Fourth Proportional to 1,930,585.55, 2,664,208.46 and 1,071,143.78

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Solution

The fourth proportional to 1,930,585.55, 2,664,208.46 and 1,071,143.78 is: 1,478,178.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930,585.55 : 2,664,208.46 = 1,071,143.78 : x
  2. Step 2: Convert to fraction form
    1,930,585.55/2,664,208.46 = 1,071,143.78/x
  3. Step 3: Cross multiply
    1,930,585.55x = 2,664,208.46 × 1,071,143.78
  4. Step 4: Simplify right side
    1,930,585.55x = 2,853,750,309,909.20
  5. Step 5: Solve for x
    x = 2,853,750,309,909.20/1,930,585.55
  6. Step 6: Final answer
    x = 1,478,178.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.