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Finding the Fourth Proportional to 440,063.67, 607,092.48 and 287,066.64

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Solution

The fourth proportional to 440,063.67, 607,092.48 and 287,066.64 is: 396,024.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,063.67 : 607,092.48 = 287,066.64 : x
  2. Step 2: Convert to fraction form
    440,063.67/607,092.48 = 287,066.64/x
  3. Step 3: Cross multiply
    440,063.67x = 607,092.48 × 287,066.64
  4. Step 4: Simplify right side
    440,063.67x = 174,275,998,402.87
  5. Step 5: Solve for x
    x = 174,275,998,402.87/440,063.67
  6. Step 6: Final answer
    x = 396,024.51

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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.