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Finding the Fourth Proportional to 567,513.28, 783,173.67 and 312,873.58

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Solution

The fourth proportional to 567,513.28, 783,173.67 and 312,873.58 is: 431,768.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,513.28 : 783,173.67 = 312,873.58 : x
  2. Step 2: Convert to fraction form
    567,513.28/783,173.67 = 312,873.58/x
  3. Step 3: Cross multiply
    567,513.28x = 783,173.67 × 312,873.58
  4. Step 4: Simplify right side
    567,513.28x = 245,034,344,414.40
  5. Step 5: Solve for x
    x = 245,034,344,414.40/567,513.28
  6. Step 6: Final answer
    x = 431,768.48

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1.5x scale

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.