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Finding the Fourth Proportional to 568,146.17, 784,325.57 and 353,355.47

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Solution

The fourth proportional to 568,146.17, 784,325.57 and 353,355.47 is: 487,807.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,146.17 : 784,325.57 = 353,355.47 : x
  2. Step 2: Convert to fraction form
    568,146.17/784,325.57 = 353,355.47/x
  3. Step 3: Cross multiply
    568,146.17x = 784,325.57 × 353,355.47
  4. Step 4: Simplify right side
    568,146.17x = 277,145,728,653.59
  5. Step 5: Solve for x
    x = 277,145,728,653.59/568,146.17
  6. Step 6: Final answer
    x = 487,807.09

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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.