Home / 1,109,122.10-1,530,659.39-625,510.79

Finding the Fourth Proportional to 1,109,122.10, 1,530,659.39 and 625,510.79

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Solution

The fourth proportional to 1,109,122.10, 1,530,659.39 and 625,510.79 is: 863,244.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,122.10 : 1,530,659.39 = 625,510.79 : x
  2. Step 2: Convert to fraction form
    1,109,122.10/1,530,659.39 = 625,510.79/x
  3. Step 3: Cross multiply
    1,109,122.10x = 1,530,659.39 × 625,510.79
  4. Step 4: Simplify right side
    1,109,122.10x = 957,443,953,478.97
  5. Step 5: Solve for x
    x = 957,443,953,478.97/1,109,122.10
  6. Step 6: Final answer
    x = 863,244.87

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Half scale
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Double scale
Find fourth proportional to 1,109,123.10, 1,530,660.77 and 625,511.79
Similar ratio
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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.