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Finding the Fourth Proportional to 467,957.61, 645,781.43 and 253,097.62

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Solution

The fourth proportional to 467,957.61, 645,781.43 and 253,097.62 is: 349,274.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,957.61 : 645,781.43 = 253,097.62 : x
  2. Step 2: Convert to fraction form
    467,957.61/645,781.43 = 253,097.62/x
  3. Step 3: Cross multiply
    467,957.61x = 645,781.43 × 253,097.62
  4. Step 4: Simplify right side
    467,957.61x = 163,445,741,991.49
  5. Step 5: Solve for x
    x = 163,445,741,991.49/467,957.61
  6. Step 6: Final answer
    x = 349,274.67

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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.