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Finding the Fourth Proportional to 892,804.14, 1,231,878.02 and 530,350.20

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Solution

The fourth proportional to 892,804.14, 1,231,878.02 and 530,350.20 is: 731,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,804.14 : 1,231,878.02 = 530,350.20 : x
  2. Step 2: Convert to fraction form
    892,804.14/1,231,878.02 = 530,350.20/x
  3. Step 3: Cross multiply
    892,804.14x = 1,231,878.02 × 530,350.20
  4. Step 4: Simplify right side
    892,804.14x = 653,326,751,630.85
  5. Step 5: Solve for x
    x = 653,326,751,630.85/892,804.14
  6. Step 6: Final answer
    x = 731,769.40

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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.