Home / 627,257.37-865,612.89-340,774.95

Finding the Fourth Proportional to 627,257.37, 865,612.89 and 340,774.95

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Solution

The fourth proportional to 627,257.37, 865,612.89 and 340,774.95 is: 470,268.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,257.37 : 865,612.89 = 340,774.95 : x
  2. Step 2: Convert to fraction form
    627,257.37/865,612.89 = 340,774.95/x
  3. Step 3: Cross multiply
    627,257.37x = 865,612.89 × 340,774.95
  4. Step 4: Simplify right side
    627,257.37x = 294,979,189,309.11
  5. Step 5: Solve for x
    x = 294,979,189,309.11/627,257.37
  6. Step 6: Final answer
    x = 470,268.19

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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.