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Finding the Fourth Proportional to 572,488.33, 790,003.06 and 317,823.12

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Solution

The fourth proportional to 572,488.33, 790,003.06 and 317,823.12 is: 438,578.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,488.33 : 790,003.06 = 317,823.12 : x
  2. Step 2: Convert to fraction form
    572,488.33/790,003.06 = 317,823.12/x
  3. Step 3: Cross multiply
    572,488.33x = 790,003.06 × 317,823.12
  4. Step 4: Simplify right side
    572,488.33x = 251,081,235,663.12
  5. Step 5: Solve for x
    x = 251,081,235,663.12/572,488.33
  6. Step 6: Final answer
    x = 438,578.78

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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.