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Finding the Fourth Proportional to 354,910.60, 532,365.90 and 275,595.40

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Solution

The fourth proportional to 354,910.60, 532,365.90 and 275,595.40 is: 413,393.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,910.60 : 532,365.90 = 275,595.40 : x
  2. Step 2: Convert to fraction form
    354,910.60/532,365.90 = 275,595.40/x
  3. Step 3: Cross multiply
    354,910.60x = 532,365.90 × 275,595.40
  4. Step 4: Simplify right side
    354,910.60x = 146,717,593,156.86
  5. Step 5: Solve for x
    x = 146,717,593,156.86/354,910.60
  6. Step 6: Final answer
    x = 413,393.10

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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.