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Finding the Fourth Proportional to 349,781.55, 482,784.08 and 229,214.67

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Solution

The fourth proportional to 349,781.55, 482,784.08 and 229,214.67 is: 316,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,781.55 : 482,784.08 = 229,214.67 : x
  2. Step 2: Convert to fraction form
    349,781.55/482,784.08 = 229,214.67/x
  3. Step 3: Cross multiply
    349,781.55x = 482,784.08 × 229,214.67
  4. Step 4: Simplify right side
    349,781.55x = 110,661,192,432.38
  5. Step 5: Solve for x
    x = 110,661,192,432.38/349,781.55
  6. Step 6: Final answer
    x = 316,372.30

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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.