Home / 521,476.16-782,587.28-222,166.40

Finding the Fourth Proportional to 521,476.16, 782,587.28 and 222,166.40

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Solution

The fourth proportional to 521,476.16, 782,587.28 and 222,166.40 is: 333,408.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,476.16 : 782,587.28 = 222,166.40 : x
  2. Step 2: Convert to fraction form
    521,476.16/782,587.28 = 222,166.40/x
  3. Step 3: Cross multiply
    521,476.16x = 782,587.28 × 222,166.40
  4. Step 4: Simplify right side
    521,476.16x = 173,864,598,683.39
  5. Step 5: Solve for x
    x = 173,864,598,683.39/521,476.16
  6. Step 6: Final answer
    x = 333,408.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.