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Finding the Fourth Proportional to 411,070.22, 567,349.08 and 239,041.40

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Solution

The fourth proportional to 411,070.22, 567,349.08 and 239,041.40 is: 329,919.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,070.22 : 567,349.08 = 239,041.40 : x
  2. Step 2: Convert to fraction form
    411,070.22/567,349.08 = 239,041.40/x
  3. Step 3: Cross multiply
    411,070.22x = 567,349.08 × 239,041.40
  4. Step 4: Simplify right side
    411,070.22x = 135,619,918,371.91
  5. Step 5: Solve for x
    x = 135,619,918,371.91/411,070.22
  6. Step 6: Final answer
    x = 329,919.10

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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.