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Finding the Fourth Proportional to 1,302,541.74, 1,950,447.78 and 898,979.58

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Solution

The fourth proportional to 1,302,541.74, 1,950,447.78 and 898,979.58 is: 1,346,147.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,541.74 : 1,950,447.78 = 898,979.58 : x
  2. Step 2: Convert to fraction form
    1,302,541.74/1,950,447.78 = 898,979.58/x
  3. Step 3: Cross multiply
    1,302,541.74x = 1,950,447.78 × 898,979.58
  4. Step 4: Simplify right side
    1,302,541.74x = 1,753,412,726,076.33
  5. Step 5: Solve for x
    x = 1,753,412,726,076.33/1,302,541.74
  6. Step 6: Final answer
    x = 1,346,147.05

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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.