Home / 674,536.58-930,749.97-398,856.11

Finding the Fourth Proportional to 674,536.58, 930,749.97 and 398,856.11

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Solution

The fourth proportional to 674,536.58, 930,749.97 and 398,856.11 is: 550,356.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,536.58 : 930,749.97 = 398,856.11 : x
  2. Step 2: Convert to fraction form
    674,536.58/930,749.97 = 398,856.11/x
  3. Step 3: Cross multiply
    674,536.58x = 930,749.97 × 398,856.11
  4. Step 4: Simplify right side
    674,536.58x = 371,235,312,416.82
  5. Step 5: Solve for x
    x = 371,235,312,416.82/674,536.58
  6. Step 6: Final answer
    x = 550,356.09

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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.