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Finding the Fourth Proportional to 534,967.20, 801,770.40 and 219,067.20

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Solution

The fourth proportional to 534,967.20, 801,770.40 and 219,067.20 is: 328,322.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,967.20 : 801,770.40 = 219,067.20 : x
  2. Step 2: Convert to fraction form
    534,967.20/801,770.40 = 219,067.20/x
  3. Step 3: Cross multiply
    534,967.20x = 801,770.40 × 219,067.20
  4. Step 4: Simplify right side
    534,967.20x = 175,641,596,570.88
  5. Step 5: Solve for x
    x = 175,641,596,570.88/534,967.20
  6. Step 6: Final answer
    x = 328,322.18

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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.