Home / 905,985.42-1,250,228.01-498,084.30

Finding the Fourth Proportional to 905,985.42, 1,250,228.01 and 498,084.30

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Solution

The fourth proportional to 905,985.42, 1,250,228.01 and 498,084.30 is: 687,338.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,985.42 : 1,250,228.01 = 498,084.30 : x
  2. Step 2: Convert to fraction form
    905,985.42/1,250,228.01 = 498,084.30/x
  3. Step 3: Cross multiply
    905,985.42x = 1,250,228.01 × 498,084.30
  4. Step 4: Simplify right side
    905,985.42x = 622,718,943,201.24
  5. Step 5: Solve for x
    x = 622,718,943,201.24/905,985.42
  6. Step 6: Final answer
    x = 687,338.81

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Double scale
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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.