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Finding the Fourth Proportional to 688,594.90, 950,105.28 and 416,656.03

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Solution

The fourth proportional to 688,594.90, 950,105.28 and 416,656.03 is: 574,891.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,594.90 : 950,105.28 = 416,656.03 : x
  2. Step 2: Convert to fraction form
    688,594.90/950,105.28 = 416,656.03/x
  3. Step 3: Cross multiply
    688,594.90x = 950,105.28 × 416,656.03
  4. Step 4: Simplify right side
    688,594.90x = 395,867,094,046.84
  5. Step 5: Solve for x
    x = 395,867,094,046.84/688,594.90
  6. Step 6: Final answer
    x = 574,891.12

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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.