Home / 627,314.20-865,697.46-340,834.12

Finding the Fourth Proportional to 627,314.20, 865,697.46 and 340,834.12

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Solution

The fourth proportional to 627,314.20, 865,697.46 and 340,834.12 is: 470,353.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,314.20 : 865,697.46 = 340,834.12 : x
  2. Step 2: Convert to fraction form
    627,314.20/865,697.46 = 340,834.12/x
  3. Step 3: Cross multiply
    627,314.20x = 865,697.46 × 340,834.12
  4. Step 4: Simplify right side
    627,314.20x = 295,059,231,965.34
  5. Step 5: Solve for x
    x = 295,059,231,965.34/627,314.20
  6. Step 6: Final answer
    x = 470,353.18

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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.