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Finding the Fourth Proportional to 567,612.48, 783,324.12 and 338,138.40

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Solution

The fourth proportional to 567,612.48, 783,324.12 and 338,138.40 is: 466,642.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,612.48 : 783,324.12 = 338,138.40 : x
  2. Step 2: Convert to fraction form
    567,612.48/783,324.12 = 338,138.40/x
  3. Step 3: Cross multiply
    567,612.48x = 783,324.12 × 338,138.40
  4. Step 4: Simplify right side
    567,612.48x = 264,871,964,618.21
  5. Step 5: Solve for x
    x = 264,871,964,618.21/567,612.48
  6. Step 6: Final answer
    x = 466,642.25

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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.