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Finding the Fourth Proportional to 568,547.76, 784,285.38 and 396,192.72

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Solution

The fourth proportional to 568,547.76, 784,285.38 and 396,192.72 is: 546,529.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,547.76 : 784,285.38 = 396,192.72 : x
  2. Step 2: Convert to fraction form
    568,547.76/784,285.38 = 396,192.72/x
  3. Step 3: Cross multiply
    568,547.76x = 784,285.38 × 396,192.72
  4. Step 4: Simplify right side
    568,547.76x = 310,728,157,958.43
  5. Step 5: Solve for x
    x = 310,728,157,958.43/568,547.76
  6. Step 6: Final answer
    x = 546,529.56

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Double scale
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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.