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Finding the Fourth Proportional to 348,876.20, 523,314.30 and 255,564.20

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Solution

The fourth proportional to 348,876.20, 523,314.30 and 255,564.20 is: 383,346.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,876.20 : 523,314.30 = 255,564.20 : x
  2. Step 2: Convert to fraction form
    348,876.20/523,314.30 = 255,564.20/x
  3. Step 3: Cross multiply
    348,876.20x = 523,314.30 × 255,564.20
  4. Step 4: Simplify right side
    348,876.20x = 133,740,400,428.06
  5. Step 5: Solve for x
    x = 133,740,400,428.06/348,876.20
  6. Step 6: Final answer
    x = 383,346.30

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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.