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Finding the Fourth Proportional to 572,560.60, 790,059.26 and 317,862.58

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Solution

The fourth proportional to 572,560.60, 790,059.26 and 317,862.58 is: 438,609.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,560.60 : 790,059.26 = 317,862.58 : x
  2. Step 2: Convert to fraction form
    572,560.60/790,059.26 = 317,862.58/x
  3. Step 3: Cross multiply
    572,560.60x = 790,059.26 × 317,862.58
  4. Step 4: Simplify right side
    572,560.60x = 251,130,274,736.49
  5. Step 5: Solve for x
    x = 251,130,274,736.49/572,560.60
  6. Step 6: Final answer
    x = 438,609.07

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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.