Home / 1,212,134.76-1,672,667.28-668,275.11

Finding the Fourth Proportional to 1,212,134.76, 1,672,667.28 and 668,275.11

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Solution

The fourth proportional to 1,212,134.76, 1,672,667.28 and 668,275.11 is: 922,176.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,134.76 : 1,672,667.28 = 668,275.11 : x
  2. Step 2: Convert to fraction form
    1,212,134.76/1,672,667.28 = 668,275.11/x
  3. Step 3: Cross multiply
    1,212,134.76x = 1,672,667.28 × 668,275.11
  4. Step 4: Simplify right side
    1,212,134.76x = 1,117,801,910,535.40
  5. Step 5: Solve for x
    x = 1,117,801,910,535.40/1,212,134.76
  6. Step 6: Final answer
    x = 922,176.27

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Double scale
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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.