Home / 811,086.40-1,217,320.80-362,497.60

Finding the Fourth Proportional to 811,086.40, 1,217,320.80 and 362,497.60

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Solution

The fourth proportional to 811,086.40, 1,217,320.80 and 362,497.60 is: 544,055.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,086.40 : 1,217,320.80 = 362,497.60 : x
  2. Step 2: Convert to fraction form
    811,086.40/1,217,320.80 = 362,497.60/x
  3. Step 3: Cross multiply
    811,086.40x = 1,217,320.80 × 362,497.60
  4. Step 4: Simplify right side
    811,086.40x = 441,275,868,430.08
  5. Step 5: Solve for x
    x = 441,275,868,430.08/811,086.40
  6. Step 6: Final answer
    x = 544,055.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.