Home / 650,788.49-897,981.30-408,899.76

Finding the Fourth Proportional to 650,788.49, 897,981.30 and 408,899.76

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Solution

The fourth proportional to 650,788.49, 897,981.30 and 408,899.76 is: 564,214.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,788.49 : 897,981.30 = 408,899.76 : x
  2. Step 2: Convert to fraction form
    650,788.49/897,981.30 = 408,899.76/x
  3. Step 3: Cross multiply
    650,788.49x = 897,981.30 × 408,899.76
  4. Step 4: Simplify right side
    650,788.49x = 367,184,338,054.49
  5. Step 5: Solve for x
    x = 367,184,338,054.49/650,788.49
  6. Step 6: Final answer
    x = 564,214.55

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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.