Home / 627,517.28-865,979.56-341,038.05

Finding the Fourth Proportional to 627,517.28, 865,979.56 and 341,038.05

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Solution

The fourth proportional to 627,517.28, 865,979.56 and 341,038.05 is: 470,635.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,517.28 : 865,979.56 = 341,038.05 : x
  2. Step 2: Convert to fraction form
    627,517.28/865,979.56 = 341,038.05/x
  3. Step 3: Cross multiply
    627,517.28x = 865,979.56 × 341,038.05
  4. Step 4: Simplify right side
    627,517.28x = 295,331,975,742.81
  5. Step 5: Solve for x
    x = 295,331,975,742.81/627,517.28
  6. Step 6: Final answer
    x = 470,635.61

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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.