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Finding the Fourth Proportional to 636,671.33, 878,587.91 and 350,191.34

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Solution

The fourth proportional to 636,671.33, 878,587.91 and 350,191.34 is: 483,253.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,671.33 : 878,587.91 = 350,191.34 : x
  2. Step 2: Convert to fraction form
    636,671.33/878,587.91 = 350,191.34/x
  3. Step 3: Cross multiply
    636,671.33x = 878,587.91 × 350,191.34
  4. Step 4: Simplify right side
    636,671.33x = 307,673,877,510.70
  5. Step 5: Solve for x
    x = 307,673,877,510.70/636,671.33
  6. Step 6: Final answer
    x = 483,253.86

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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.