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Finding the Fourth Proportional to 631,862.75, 947,794.13 and 252,954.07

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Solution

The fourth proportional to 631,862.75, 947,794.13 and 252,954.07 is: 379,431.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,862.75 : 947,794.13 = 252,954.07 : x
  2. Step 2: Convert to fraction form
    631,862.75/947,794.13 = 252,954.07/x
  3. Step 3: Cross multiply
    631,862.75x = 947,794.13 × 252,954.07
  4. Step 4: Simplify right side
    631,862.75x = 239,748,382,705.61
  5. Step 5: Solve for x
    x = 239,748,382,705.61/631,862.75
  6. Step 6: Final answer
    x = 379,431.11

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Similar ratio
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1.5x scale

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.