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Finding the Fourth Proportional to 568,146.92, 784,326.60 and 353,356.22

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Solution

The fourth proportional to 568,146.92, 784,326.60 and 353,356.22 is: 487,808.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,146.92 : 784,326.60 = 353,356.22 : x
  2. Step 2: Convert to fraction form
    568,146.92/784,326.60 = 353,356.22/x
  3. Step 3: Cross multiply
    568,146.92x = 784,326.60 × 353,356.22
  4. Step 4: Simplify right side
    568,146.92x = 277,146,682,621.45
  5. Step 5: Solve for x
    x = 277,146,682,621.45/568,146.92
  6. Step 6: Final answer
    x = 487,808.12

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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.