Home / 627,337.71-865,738.94-340,876.35

Finding the Fourth Proportional to 627,337.71, 865,738.94 and 340,876.35

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Solution

The fourth proportional to 627,337.71, 865,738.94 and 340,876.35 is: 470,416.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,337.71 : 865,738.94 = 340,876.35 : x
  2. Step 2: Convert to fraction form
    627,337.71/865,738.94 = 340,876.35/x
  3. Step 3: Cross multiply
    627,337.71x = 865,738.94 × 340,876.35
  4. Step 4: Simplify right side
    627,337.71x = 295,109,928,215.69
  5. Step 5: Solve for x
    x = 295,109,928,215.69/627,337.71
  6. Step 6: Final answer
    x = 470,416.37

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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.