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Finding the Fourth Proportional to 374,668.68, 561,428.46 and 254,572.68

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Solution

The fourth proportional to 374,668.68, 561,428.46 and 254,572.68 is: 381,468.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,668.68 : 561,428.46 = 254,572.68 : x
  2. Step 2: Convert to fraction form
    374,668.68/561,428.46 = 254,572.68/x
  3. Step 3: Cross multiply
    374,668.68x = 561,428.46 × 254,572.68
  4. Step 4: Simplify right side
    374,668.68x = 142,924,347,690.47
  5. Step 5: Solve for x
    x = 142,924,347,690.47/374,668.68
  6. Step 6: Final answer
    x = 381,468.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.