Home / 401,397.86-553,928.82-220,112.93

Finding the Fourth Proportional to 401,397.86, 553,928.82 and 220,112.93

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Solution

The fourth proportional to 401,397.86, 553,928.82 and 220,112.93 is: 303,755.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,397.86 : 553,928.82 = 220,112.93 : x
  2. Step 2: Convert to fraction form
    401,397.86/553,928.82 = 220,112.93/x
  3. Step 3: Cross multiply
    401,397.86x = 553,928.82 × 220,112.93
  4. Step 4: Simplify right side
    401,397.86x = 121,926,895,581.64
  5. Step 5: Solve for x
    x = 121,926,895,581.64/401,397.86
  6. Step 6: Final answer
    x = 303,755.72

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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.