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Finding the Fourth Proportional to 567,609.24, 783,306.90 and 312,969.54

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Solution

The fourth proportional to 567,609.24, 783,306.90 and 312,969.54 is: 431,901.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,609.24 : 783,306.90 = 312,969.54 : x
  2. Step 2: Convert to fraction form
    567,609.24/783,306.90 = 312,969.54/x
  3. Step 3: Cross multiply
    567,609.24x = 783,306.90 × 312,969.54
  4. Step 4: Simplify right side
    567,609.24x = 245,151,200,171.83
  5. Step 5: Solve for x
    x = 245,151,200,171.83/567,609.24
  6. Step 6: Final answer
    x = 431,901.36

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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.