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Finding the Fourth Proportional to 542,671.85, 814,007.78 and 353,715.05

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Solution

The fourth proportional to 542,671.85, 814,007.78 and 353,715.05 is: 530,572.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,671.85 : 814,007.78 = 353,715.05 : x
  2. Step 2: Convert to fraction form
    542,671.85/814,007.78 = 353,715.05/x
  3. Step 3: Cross multiply
    542,671.85x = 814,007.78 × 353,715.05
  4. Step 4: Simplify right side
    542,671.85x = 287,926,800,834.51
  5. Step 5: Solve for x
    x = 287,926,800,834.51/542,671.85
  6. Step 6: Final answer
    x = 530,572.58

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.