Home / 627,133.35-865,443.36-340,653.66

Finding the Fourth Proportional to 627,133.35, 865,443.36 and 340,653.66

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Solution

The fourth proportional to 627,133.35, 865,443.36 and 340,653.66 is: 470,101.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,133.35 : 865,443.36 = 340,653.66 : x
  2. Step 2: Convert to fraction form
    627,133.35/865,443.36 = 340,653.66/x
  3. Step 3: Cross multiply
    627,133.35x = 865,443.36 × 340,653.66
  4. Step 4: Simplify right side
    627,133.35x = 294,816,442,927.85
  5. Step 5: Solve for x
    x = 294,816,442,927.85/627,133.35
  6. Step 6: Final answer
    x = 470,101.69

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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.