Home / 627,360.96-865,763.40-340,881.05

Finding the Fourth Proportional to 627,360.96, 865,763.40 and 340,881.05

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Solution

The fourth proportional to 627,360.96, 865,763.40 and 340,881.05 is: 470,418.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,360.96 : 865,763.40 = 340,881.05 : x
  2. Step 2: Convert to fraction form
    627,360.96/865,763.40 = 340,881.05/x
  3. Step 3: Cross multiply
    627,360.96x = 865,763.40 × 340,881.05
  4. Step 4: Simplify right side
    627,360.96x = 295,122,332,514.75
  5. Step 5: Solve for x
    x = 295,122,332,514.75/627,360.96
  6. Step 6: Final answer
    x = 470,418.71

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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.