Home / 627,099.45-865,371.54-340,613.39

Finding the Fourth Proportional to 627,099.45, 865,371.54 and 340,613.39

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Solution

The fourth proportional to 627,099.45, 865,371.54 and 340,613.39 is: 470,032.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,099.45 : 865,371.54 = 340,613.39 : x
  2. Step 2: Convert to fraction form
    627,099.45/865,371.54 = 340,613.39/x
  3. Step 3: Cross multiply
    627,099.45x = 865,371.54 × 340,613.39
  4. Step 4: Simplify right side
    627,099.45x = 294,757,129,522.06
  5. Step 5: Solve for x
    x = 294,757,129,522.06/627,099.45
  6. Step 6: Final answer
    x = 470,032.51

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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.