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Finding the Fourth Proportional to 567,719.12, 783,491.10 and 329,255.12

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Solution

The fourth proportional to 567,719.12, 783,491.10 and 329,255.12 is: 454,394.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,719.12 : 783,491.10 = 329,255.12 : x
  2. Step 2: Convert to fraction form
    567,719.12/783,491.10 = 329,255.12/x
  3. Step 3: Cross multiply
    567,719.12x = 783,491.10 × 329,255.12
  4. Step 4: Simplify right side
    567,719.12x = 257,968,456,873.45
  5. Step 5: Solve for x
    x = 257,968,456,873.45/567,719.12
  6. Step 6: Final answer
    x = 454,394.52

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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.