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Finding the Fourth Proportional to 522,446.05, 783,669.93 and 143,371.97

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Solution

The fourth proportional to 522,446.05, 783,669.93 and 143,371.97 is: 215,058.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,446.05 : 783,669.93 = 143,371.97 : x
  2. Step 2: Convert to fraction form
    522,446.05/783,669.93 = 143,371.97/x
  3. Step 3: Cross multiply
    522,446.05x = 783,669.93 × 143,371.97
  4. Step 4: Simplify right side
    522,446.05x = 112,356,301,693.86
  5. Step 5: Solve for x
    x = 112,356,301,693.86/522,446.05
  6. Step 6: Final answer
    x = 215,058.19

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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.