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Finding the Fourth Proportional to 400,191.20, 599,270.76 and 240,166.40

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Solution

The fourth proportional to 400,191.20, 599,270.76 and 240,166.40 is: 359,639.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,191.20 : 599,270.76 = 240,166.40 : x
  2. Step 2: Convert to fraction form
    400,191.20/599,270.76 = 240,166.40/x
  3. Step 3: Cross multiply
    400,191.20x = 599,270.76 × 240,166.40
  4. Step 4: Simplify right side
    400,191.20x = 143,924,701,054.46
  5. Step 5: Solve for x
    x = 143,924,701,054.46/400,191.20
  6. Step 6: Final answer
    x = 359,639.84

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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.