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Finding the Fourth Proportional to 952,404.48, 1,427,518.08 and 390,744

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Solution

The fourth proportional to 952,404.48, 1,427,518.08 and 390,744 is: 585,669.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    952,404.48 : 1,427,518.08 = 390,744 : x
  2. Step 2: Convert to fraction form
    952,404.48/1,427,518.08 = 390,744/x
  3. Step 3: Cross multiply
    952,404.48x = 1,427,518.08 × 390,744
  4. Step 4: Simplify right side
    952,404.48x = 557,794,124,651.52
  5. Step 5: Solve for x
    x = 557,794,124,651.52/952,404.48
  6. Step 6: Final answer
    x = 585,669.36

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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.