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Finding the Fourth Proportional to 348,546.80, 522,820.20 and 345,922.40

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Solution

The fourth proportional to 348,546.80, 522,820.20 and 345,922.40 is: 518,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,546.80 : 522,820.20 = 345,922.40 : x
  2. Step 2: Convert to fraction form
    348,546.80/522,820.20 = 345,922.40/x
  3. Step 3: Cross multiply
    348,546.80x = 522,820.20 × 345,922.40
  4. Step 4: Simplify right side
    348,546.80x = 180,855,218,352.48
  5. Step 5: Solve for x
    x = 180,855,218,352.48/348,546.80
  6. Step 6: Final answer
    x = 518,883.60

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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.