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Finding the Fourth Proportional to 411,442.40, 567,561.98 and 239,340.98

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Solution

The fourth proportional to 411,442.40, 567,561.98 and 239,340.98 is: 330,157.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,442.40 : 567,561.98 = 239,340.98 : x
  2. Step 2: Convert to fraction form
    411,442.40/567,561.98 = 239,340.98/x
  3. Step 3: Cross multiply
    411,442.40x = 567,561.98 × 239,340.98
  4. Step 4: Simplify right side
    411,442.40x = 135,840,842,521.20
  5. Step 5: Solve for x
    x = 135,840,842,521.20/411,442.40
  6. Step 6: Final answer
    x = 330,157.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.