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Finding the Fourth Proportional to 950,434, 1,311,276 and 542,242.60

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Solution

The fourth proportional to 950,434, 1,311,276 and 542,242.60 is: 748,110.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,434 : 1,311,276 = 542,242.60 : x
  2. Step 2: Convert to fraction form
    950,434/1,311,276 = 542,242.60/x
  3. Step 3: Cross multiply
    950,434x = 1,311,276 × 542,242.60
  4. Step 4: Simplify right side
    950,434x = 711,029,707,557.60
  5. Step 5: Solve for x
    x = 711,029,707,557.60/950,434
  6. Step 6: Final answer
    x = 748,110.56

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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.