Home / 1,108,855.47-1,530,218.46-625,419.12

Finding the Fourth Proportional to 1,108,855.47, 1,530,218.46 and 625,419.12

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Solution

The fourth proportional to 1,108,855.47, 1,530,218.46 and 625,419.12 is: 863,077.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,855.47 : 1,530,218.46 = 625,419.12 : x
  2. Step 2: Convert to fraction form
    1,108,855.47/1,530,218.46 = 625,419.12/x
  3. Step 3: Cross multiply
    1,108,855.47x = 1,530,218.46 × 625,419.12
  4. Step 4: Simplify right side
    1,108,855.47x = 957,027,882,660.96
  5. Step 5: Solve for x
    x = 957,027,882,660.96/1,108,855.47
  6. Step 6: Final answer
    x = 863,077.21

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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.