Home / 627,116.58-865,417.50-340,636.86

Finding the Fourth Proportional to 627,116.58, 865,417.50 and 340,636.86

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Solution

The fourth proportional to 627,116.58, 865,417.50 and 340,636.86 is: 470,077.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,116.58 : 865,417.50 = 340,636.86 : x
  2. Step 2: Convert to fraction form
    627,116.58/865,417.50 = 340,636.86/x
  3. Step 3: Cross multiply
    627,116.58x = 865,417.50 × 340,636.86
  4. Step 4: Simplify right side
    627,116.58x = 294,793,099,789.05
  5. Step 5: Solve for x
    x = 294,793,099,789.05/627,116.58
  6. Step 6: Final answer
    x = 470,077.03

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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.