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Finding the Fourth Proportional to 401,568.74, 554,154.71 and 229,475.76

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Solution

The fourth proportional to 401,568.74, 554,154.71 and 229,475.76 is: 316,670.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,568.74 : 554,154.71 = 229,475.76 : x
  2. Step 2: Convert to fraction form
    401,568.74/554,154.71 = 229,475.76/x
  3. Step 3: Cross multiply
    401,568.74x = 554,154.71 × 229,475.76
  4. Step 4: Simplify right side
    401,568.74x = 127,165,073,234.83
  5. Step 5: Solve for x
    x = 127,165,073,234.83/401,568.74
  6. Step 6: Final answer
    x = 316,670.75

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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.