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Finding the Fourth Proportional to 466,428.80, 699,643.20 and 170,902.40

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Solution

The fourth proportional to 466,428.80, 699,643.20 and 170,902.40 is: 256,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,428.80 : 699,643.20 = 170,902.40 : x
  2. Step 2: Convert to fraction form
    466,428.80/699,643.20 = 170,902.40/x
  3. Step 3: Cross multiply
    466,428.80x = 699,643.20 × 170,902.40
  4. Step 4: Simplify right side
    466,428.80x = 119,570,702,023.68
  5. Step 5: Solve for x
    x = 119,570,702,023.68/466,428.80
  6. Step 6: Final answer
    x = 256,353.60

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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.