Home / 627,141.59-865,456.04-340,661.70

Finding the Fourth Proportional to 627,141.59, 865,456.04 and 340,661.70

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Solution

The fourth proportional to 627,141.59, 865,456.04 and 340,661.70 is: 470,113.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,141.59 : 865,456.04 = 340,661.70 : x
  2. Step 2: Convert to fraction form
    627,141.59/865,456.04 = 340,661.70/x
  3. Step 3: Cross multiply
    627,141.59x = 865,456.04 × 340,661.70
  4. Step 4: Simplify right side
    627,141.59x = 294,827,726,713.32
  5. Step 5: Solve for x
    x = 294,827,726,713.32/627,141.59
  6. Step 6: Final answer
    x = 470,113.50

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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.