Home / 818,535.39-1,227,792.14-211,325.77

Finding the Fourth Proportional to 818,535.39, 1,227,792.14 and 211,325.77

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Solution

The fourth proportional to 818,535.39, 1,227,792.14 and 211,325.77 is: 316,985.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,535.39 : 1,227,792.14 = 211,325.77 : x
  2. Step 2: Convert to fraction form
    818,535.39/1,227,792.14 = 211,325.77/x
  3. Step 3: Cross multiply
    818,535.39x = 1,227,792.14 × 211,325.77
  4. Step 4: Simplify right side
    818,535.39x = 259,464,119,385.45
  5. Step 5: Solve for x
    x = 259,464,119,385.45/818,535.39
  6. Step 6: Final answer
    x = 316,985.83

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Double scale
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1.5x scale

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.