Home / 627,131.68-865,443.36-340,649.44

Finding the Fourth Proportional to 627,131.68, 865,443.36 and 340,649.44

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Solution

The fourth proportional to 627,131.68, 865,443.36 and 340,649.44 is: 470,097.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,131.68 : 865,443.36 = 340,649.44 : x
  2. Step 2: Convert to fraction form
    627,131.68/865,443.36 = 340,649.44/x
  3. Step 3: Cross multiply
    627,131.68x = 865,443.36 × 340,649.44
  4. Step 4: Simplify right side
    627,131.68x = 294,812,795,935.72
  5. Step 5: Solve for x
    x = 294,812,795,935.72/627,131.68
  6. Step 6: Final answer
    x = 470,097.12

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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.