Home / 821,626.99-1,133,732.53-459,005.78

Finding the Fourth Proportional to 821,626.99, 1,133,732.53 and 459,005.78

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Solution

The fourth proportional to 821,626.99, 1,133,732.53 and 459,005.78 is: 633,365.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,626.99 : 1,133,732.53 = 459,005.78 : x
  2. Step 2: Convert to fraction form
    821,626.99/1,133,732.53 = 459,005.78/x
  3. Step 3: Cross multiply
    821,626.99x = 1,133,732.53 × 459,005.78
  4. Step 4: Simplify right side
    821,626.99x = 520,389,785,930.84
  5. Step 5: Solve for x
    x = 520,389,785,930.84/821,626.99
  6. Step 6: Final answer
    x = 633,365.01

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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.