Home / 810,855.84-1,216,285.20-249,886.56

Finding the Fourth Proportional to 810,855.84, 1,216,285.20 and 249,886.56

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Solution

The fourth proportional to 810,855.84, 1,216,285.20 and 249,886.56 is: 374,830.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,855.84 : 1,216,285.20 = 249,886.56 : x
  2. Step 2: Convert to fraction form
    810,855.84/1,216,285.20 = 249,886.56/x
  3. Step 3: Cross multiply
    810,855.84x = 1,216,285.20 × 249,886.56
  4. Step 4: Simplify right side
    810,855.84x = 303,933,324,606.91
  5. Step 5: Solve for x
    x = 303,933,324,606.91/810,855.84
  6. Step 6: Final answer
    x = 374,830.28

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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.