Home / 627,389.46-865,802.94-340,909.55

Finding the Fourth Proportional to 627,389.46, 865,802.94 and 340,909.55

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Solution

The fourth proportional to 627,389.46, 865,802.94 and 340,909.55 is: 470,458.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,389.46 : 865,802.94 = 340,909.55 : x
  2. Step 2: Convert to fraction form
    627,389.46/865,802.94 = 340,909.55/x
  3. Step 3: Cross multiply
    627,389.46x = 865,802.94 × 340,909.55
  4. Step 4: Simplify right side
    627,389.46x = 295,160,486,335.06
  5. Step 5: Solve for x
    x = 295,160,486,335.06/627,389.46
  6. Step 6: Final answer
    x = 470,458.15

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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.