Home / 811,833.81-1,120,303.09-449,272.95

Finding the Fourth Proportional to 811,833.81, 1,120,303.09 and 449,272.95

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Solution

The fourth proportional to 811,833.81, 1,120,303.09 and 449,272.95 is: 619,981.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,833.81 : 1,120,303.09 = 449,272.95 : x
  2. Step 2: Convert to fraction form
    811,833.81/1,120,303.09 = 449,272.95/x
  3. Step 3: Cross multiply
    811,833.81x = 1,120,303.09 × 449,272.95
  4. Step 4: Simplify right side
    811,833.81x = 503,321,874,138.42
  5. Step 5: Solve for x
    x = 503,321,874,138.42/811,833.81
  6. Step 6: Final answer
    x = 619,981.41

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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.