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Finding the Fourth Proportional to 365,931.60, 548,638.20 and 141,205.20

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Solution

The fourth proportional to 365,931.60, 548,638.20 and 141,205.20 is: 211,707.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,931.60 : 548,638.20 = 141,205.20 : x
  2. Step 2: Convert to fraction form
    365,931.60/548,638.20 = 141,205.20/x
  3. Step 3: Cross multiply
    365,931.60x = 548,638.20 × 141,205.20
  4. Step 4: Simplify right side
    365,931.60x = 77,470,566,758.64
  5. Step 5: Solve for x
    x = 77,470,566,758.64/365,931.60
  6. Step 6: Final answer
    x = 211,707.78

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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.