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Finding the Fourth Proportional to 572,159.82, 789,587.67 and 317,534.70

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Solution

The fourth proportional to 572,159.82, 789,587.67 and 317,534.70 is: 438,201.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,159.82 : 789,587.67 = 317,534.70 : x
  2. Step 2: Convert to fraction form
    572,159.82/789,587.67 = 317,534.70/x
  3. Step 3: Cross multiply
    572,159.82x = 789,587.67 × 317,534.70
  4. Step 4: Simplify right side
    572,159.82x = 250,721,483,917.15
  5. Step 5: Solve for x
    x = 250,721,483,917.15/572,159.82
  6. Step 6: Final answer
    x = 438,201.84

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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.