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Finding the Fourth Proportional to 365,835.20, 548,752.80 and 155,445.80

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Solution

The fourth proportional to 365,835.20, 548,752.80 and 155,445.80 is: 233,168.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,835.20 : 548,752.80 = 155,445.80 : x
  2. Step 2: Convert to fraction form
    365,835.20/548,752.80 = 155,445.80/x
  3. Step 3: Cross multiply
    365,835.20x = 548,752.80 × 155,445.80
  4. Step 4: Simplify right side
    365,835.20x = 85,301,317,998.24
  5. Step 5: Solve for x
    x = 85,301,317,998.24/365,835.20
  6. Step 6: Final answer
    x = 233,168.70

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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.