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Finding the Fourth Proportional to 572,556.60, 790,053.75 and 317,858.58

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Solution

The fourth proportional to 572,556.60, 790,053.75 and 317,858.58 is: 438,603.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,556.60 : 790,053.75 = 317,858.58 : x
  2. Step 2: Convert to fraction form
    572,556.60/790,053.75 = 317,858.58/x
  3. Step 3: Cross multiply
    572,556.60x = 790,053.75 × 317,858.58
  4. Step 4: Simplify right side
    572,556.60x = 251,125,363,098.68
  5. Step 5: Solve for x
    x = 251,125,363,098.68/572,556.60
  6. Step 6: Final answer
    x = 438,603.56

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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.