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Finding the Fourth Proportional to 220,200.30, 329,425.65 and 190,943.10

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Solution

The fourth proportional to 220,200.30, 329,425.65 and 190,943.10 is: 285,656.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,200.30 : 329,425.65 = 190,943.10 : x
  2. Step 2: Convert to fraction form
    220,200.30/329,425.65 = 190,943.10/x
  3. Step 3: Cross multiply
    220,200.30x = 329,425.65 × 190,943.10
  4. Step 4: Simplify right side
    220,200.30x = 62,901,554,830.52
  5. Step 5: Solve for x
    x = 62,901,554,830.52/220,200.30
  6. Step 6: Final answer
    x = 285,656.08

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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.