Home / 391,066.08-539,309.52-247,581.60

Finding the Fourth Proportional to 391,066.08, 539,309.52 and 247,581.60

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Solution

The fourth proportional to 391,066.08, 539,309.52 and 247,581.60 is: 341,433.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,066.08 : 539,309.52 = 247,581.60 : x
  2. Step 2: Convert to fraction form
    391,066.08/539,309.52 = 247,581.60/x
  3. Step 3: Cross multiply
    391,066.08x = 539,309.52 × 247,581.60
  4. Step 4: Simplify right side
    391,066.08x = 133,523,113,856.83
  5. Step 5: Solve for x
    x = 133,523,113,856.83/391,066.08
  6. Step 6: Final answer
    x = 341,433.64

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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.