Home / 816,527.70-1,126,812.61-449,028.53

Finding the Fourth Proportional to 816,527.70, 1,126,812.61 and 449,028.53

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Solution

The fourth proportional to 816,527.70, 1,126,812.61 and 449,028.53 is: 619,661.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,527.70 : 1,126,812.61 = 449,028.53 : x
  2. Step 2: Convert to fraction form
    816,527.70/1,126,812.61 = 449,028.53/x
  3. Step 3: Cross multiply
    816,527.70x = 1,126,812.61 × 449,028.53
  4. Step 4: Simplify right side
    816,527.70x = 505,971,009,853.76
  5. Step 5: Solve for x
    x = 505,971,009,853.76/816,527.70
  6. Step 6: Final answer
    x = 619,661.78

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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.