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Finding the Fourth Proportional to 567,612.98, 783,324.81 and 338,138.90

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Solution

The fourth proportional to 567,612.98, 783,324.81 and 338,138.90 is: 466,642.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,612.98 : 783,324.81 = 338,138.90 : x
  2. Step 2: Convert to fraction form
    567,612.98/783,324.81 = 338,138.90/x
  3. Step 3: Cross multiply
    567,612.98x = 783,324.81 × 338,138.90
  4. Step 4: Simplify right side
    567,612.98x = 264,872,589,596.11
  5. Step 5: Solve for x
    x = 264,872,589,596.11/567,612.98
  6. Step 6: Final answer
    x = 466,642.94

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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.