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Finding the Fourth Proportional to 590,616.60, 885,320.10 and 290,635.80

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Solution

The fourth proportional to 590,616.60, 885,320.10 and 290,635.80 is: 435,656.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,616.60 : 885,320.10 = 290,635.80 : x
  2. Step 2: Convert to fraction form
    590,616.60/885,320.10 = 290,635.80/x
  3. Step 3: Cross multiply
    590,616.60x = 885,320.10 × 290,635.80
  4. Step 4: Simplify right side
    590,616.60x = 257,305,715,519.58
  5. Step 5: Solve for x
    x = 257,305,715,519.58/590,616.60
  6. Step 6: Final answer
    x = 435,656.08

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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.