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Finding the Fourth Proportional to 351,920.80, 527,881.20 and 344,922.40

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Solution

The fourth proportional to 351,920.80, 527,881.20 and 344,922.40 is: 517,383.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,920.80 : 527,881.20 = 344,922.40 : x
  2. Step 2: Convert to fraction form
    351,920.80/527,881.20 = 344,922.40/x
  3. Step 3: Cross multiply
    351,920.80x = 527,881.20 × 344,922.40
  4. Step 4: Simplify right side
    351,920.80x = 182,078,050,418.88
  5. Step 5: Solve for x
    x = 182,078,050,418.88/351,920.80
  6. Step 6: Final answer
    x = 517,383.60

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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.