Home / 821,885.46-1,134,206.15-459,315.38

Finding the Fourth Proportional to 821,885.46, 1,134,206.15 and 459,315.38

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Solution

The fourth proportional to 821,885.46, 1,134,206.15 and 459,315.38 is: 633,857.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,885.46 : 1,134,206.15 = 459,315.38 : x
  2. Step 2: Convert to fraction form
    821,885.46/1,134,206.15 = 459,315.38/x
  3. Step 3: Cross multiply
    821,885.46x = 1,134,206.15 × 459,315.38
  4. Step 4: Simplify right side
    821,885.46x = 520,958,320,817.98
  5. Step 5: Solve for x
    x = 520,958,320,817.98/821,885.46
  6. Step 6: Final answer
    x = 633,857.57

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Double scale
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1.5x scale

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.