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Finding the Fourth Proportional to 355,105.60, 532,658.40 and 299,118.40

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Solution

The fourth proportional to 355,105.60, 532,658.40 and 299,118.40 is: 448,677.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,105.60 : 532,658.40 = 299,118.40 : x
  2. Step 2: Convert to fraction form
    355,105.60/532,658.40 = 299,118.40/x
  3. Step 3: Cross multiply
    355,105.60x = 532,658.40 × 299,118.40
  4. Step 4: Simplify right side
    355,105.60x = 159,327,928,354.56
  5. Step 5: Solve for x
    x = 159,327,928,354.56/355,105.60
  6. Step 6: Final answer
    x = 448,677.60

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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.