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Finding the Fourth Proportional to 402,777.60, 604,166.40 and 270,067.20

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Solution

The fourth proportional to 402,777.60, 604,166.40 and 270,067.20 is: 405,100.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,777.60 : 604,166.40 = 270,067.20 : x
  2. Step 2: Convert to fraction form
    402,777.60/604,166.40 = 270,067.20/x
  3. Step 3: Cross multiply
    402,777.60x = 604,166.40 × 270,067.20
  4. Step 4: Simplify right side
    402,777.60x = 163,165,527,982.08
  5. Step 5: Solve for x
    x = 163,165,527,982.08/402,777.60
  6. Step 6: Final answer
    x = 405,100.80

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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.