Home / 811,133.25-1,216,612.28-271,328.33

Finding the Fourth Proportional to 811,133.25, 1,216,612.28 and 271,328.33

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Solution

The fourth proportional to 811,133.25, 1,216,612.28 and 271,328.33 is: 406,963.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,133.25 : 1,216,612.28 = 271,328.33 : x
  2. Step 2: Convert to fraction form
    811,133.25/1,216,612.28 = 271,328.33/x
  3. Step 3: Cross multiply
    811,133.25x = 1,216,612.28 × 271,328.33
  4. Step 4: Simplify right side
    811,133.25x = 330,101,370,750.19
  5. Step 5: Solve for x
    x = 330,101,370,750.19/811,133.25
  6. Step 6: Final answer
    x = 406,963.18

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Double scale
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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.