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Finding the Fourth Proportional to 567,719.56, 783,491.70 and 329,255.56

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Solution

The fourth proportional to 567,719.56, 783,491.70 and 329,255.56 is: 454,395.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,719.56 : 783,491.70 = 329,255.56 : x
  2. Step 2: Convert to fraction form
    567,719.56/783,491.70 = 329,255.56/x
  3. Step 3: Cross multiply
    567,719.56x = 783,491.70 × 329,255.56
  4. Step 4: Simplify right side
    567,719.56x = 257,968,998,438.85
  5. Step 5: Solve for x
    x = 257,968,998,438.85/567,719.56
  6. Step 6: Final answer
    x = 454,395.12

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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.