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Finding the Fourth Proportional to 769,807.96, 1,062,316.15 and 425,634.82

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Solution

The fourth proportional to 769,807.96, 1,062,316.15 and 425,634.82 is: 587,365.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,807.96 : 1,062,316.15 = 425,634.82 : x
  2. Step 2: Convert to fraction form
    769,807.96/1,062,316.15 = 425,634.82/x
  3. Step 3: Cross multiply
    769,807.96x = 1,062,316.15 × 425,634.82
  4. Step 4: Simplify right side
    769,807.96x = 452,158,739,568.47
  5. Step 5: Solve for x
    x = 452,158,739,568.47/769,807.96
  6. Step 6: Final answer
    x = 587,365.63

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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.