Home / 627,080.35-865,382.28-355,204.69

Finding the Fourth Proportional to 627,080.35, 865,382.28 and 355,204.69

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Solution

The fourth proportional to 627,080.35, 865,382.28 and 355,204.69 is: 490,188.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,080.35 : 865,382.28 = 355,204.69 : x
  2. Step 2: Convert to fraction form
    627,080.35/865,382.28 = 355,204.69/x
  3. Step 3: Cross multiply
    627,080.35x = 865,382.28 × 355,204.69
  4. Step 4: Simplify right side
    627,080.35x = 307,387,847,869.22
  5. Step 5: Solve for x
    x = 307,387,847,869.22/627,080.35
  6. Step 6: Final answer
    x = 490,188.93

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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.