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Finding the Fourth Proportional to 348,034.96, 480,245.46 and 212,019.55

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Solution

The fourth proportional to 348,034.96, 480,245.46 and 212,019.55 is: 292,560.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,034.96 : 480,245.46 = 212,019.55 : x
  2. Step 2: Convert to fraction form
    348,034.96/480,245.46 = 212,019.55/x
  3. Step 3: Cross multiply
    348,034.96x = 480,245.46 × 212,019.55
  4. Step 4: Simplify right side
    348,034.96x = 101,821,426,318.74
  5. Step 5: Solve for x
    x = 101,821,426,318.74/348,034.96
  6. Step 6: Final answer
    x = 292,560.91

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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.