Home / 821,885.74-1,134,206.50-459,315.66

Finding the Fourth Proportional to 821,885.74, 1,134,206.50 and 459,315.66

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Solution

The fourth proportional to 821,885.74, 1,134,206.50 and 459,315.66 is: 633,857.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,885.74 : 1,134,206.50 = 459,315.66 : x
  2. Step 2: Convert to fraction form
    821,885.74/1,134,206.50 = 459,315.66/x
  3. Step 3: Cross multiply
    821,885.74x = 1,134,206.50 × 459,315.66
  4. Step 4: Simplify right side
    821,885.74x = 520,958,807,123.79
  5. Step 5: Solve for x
    x = 520,958,807,123.79/821,885.74
  6. Step 6: Final answer
    x = 633,857.95

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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.