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Finding the Fourth Proportional to 371,794.59, 513,034.89 and 210,615.12

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Solution

The fourth proportional to 371,794.59, 513,034.89 and 210,615.12 is: 290,625.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,794.59 : 513,034.89 = 210,615.12 : x
  2. Step 2: Convert to fraction form
    371,794.59/513,034.89 = 210,615.12/x
  3. Step 3: Cross multiply
    371,794.59x = 513,034.89 × 210,615.12
  4. Step 4: Simplify right side
    371,794.59x = 108,052,904,921.54
  5. Step 5: Solve for x
    x = 108,052,904,921.54/371,794.59
  6. Step 6: Final answer
    x = 290,625.27

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1.5x scale

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.