Home / 627,133.97-865,444.22-340,654.28

Finding the Fourth Proportional to 627,133.97, 865,444.22 and 340,654.28

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Solution

The fourth proportional to 627,133.97, 865,444.22 and 340,654.28 is: 470,102.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,133.97 : 865,444.22 = 340,654.28 : x
  2. Step 2: Convert to fraction form
    627,133.97/865,444.22 = 340,654.28/x
  3. Step 3: Cross multiply
    627,133.97x = 865,444.22 × 340,654.28
  4. Step 4: Simplify right side
    627,133.97x = 294,817,277,644.26
  5. Step 5: Solve for x
    x = 294,817,277,644.26/627,133.97
  6. Step 6: Final answer
    x = 470,102.55

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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.