Home / 537,623.80-806,435.70-221,918.20

Finding the Fourth Proportional to 537,623.80, 806,435.70 and 221,918.20

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Solution

The fourth proportional to 537,623.80, 806,435.70 and 221,918.20 is: 332,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,623.80 : 806,435.70 = 221,918.20 : x
  2. Step 2: Convert to fraction form
    537,623.80/806,435.70 = 221,918.20/x
  3. Step 3: Cross multiply
    537,623.80x = 806,435.70 × 221,918.20
  4. Step 4: Simplify right side
    537,623.80x = 178,962,758,959.74
  5. Step 5: Solve for x
    x = 178,962,758,959.74/537,623.80
  6. Step 6: Final answer
    x = 332,877.30

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Double scale
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Similar ratio
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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.