Home / 2,808,095.40-4,212,143.10-915,028.20

Finding the Fourth Proportional to 2,808,095.40, 4,212,143.10 and 915,028.20

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Solution

The fourth proportional to 2,808,095.40, 4,212,143.10 and 915,028.20 is: 1,372,542.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808,095.40 : 4,212,143.10 = 915,028.20 : x
  2. Step 2: Convert to fraction form
    2,808,095.40/4,212,143.10 = 915,028.20/x
  3. Step 3: Cross multiply
    2,808,095.40x = 4,212,143.10 × 915,028.20
  4. Step 4: Simplify right side
    2,808,095.40x = 3,854,229,718,935.42
  5. Step 5: Solve for x
    x = 3,854,229,718,935.42/2,808,095.40
  6. Step 6: Final answer
    x = 1,372,542.30

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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.