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Finding the Fourth Proportional to 568,233.67, 784,166.76 and 310,112.59

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Solution

The fourth proportional to 568,233.67, 784,166.76 and 310,112.59 is: 427,957.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,233.67 : 784,166.76 = 310,112.59 : x
  2. Step 2: Convert to fraction form
    568,233.67/784,166.76 = 310,112.59/x
  3. Step 3: Cross multiply
    568,233.67x = 784,166.76 × 310,112.59
  4. Step 4: Simplify right side
    568,233.67x = 243,179,984,935.51
  5. Step 5: Solve for x
    x = 243,179,984,935.51/568,233.67
  6. Step 6: Final answer
    x = 427,957.72

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Half scale
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Double scale
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Similar ratio
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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.