Home / 1,109,215.38-1,530,715.41-625,779.30

Finding the Fourth Proportional to 1,109,215.38, 1,530,715.41 and 625,779.30

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Solution

The fourth proportional to 1,109,215.38, 1,530,715.41 and 625,779.30 is: 863,574.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,215.38 : 1,530,715.41 = 625,779.30 : x
  2. Step 2: Convert to fraction form
    1,109,215.38/1,530,715.41 = 625,779.30/x
  3. Step 3: Cross multiply
    1,109,215.38x = 1,530,715.41 × 625,779.30
  4. Step 4: Simplify right side
    1,109,215.38x = 957,890,017,769.01
  5. Step 5: Solve for x
    x = 957,890,017,769.01/1,109,215.38
  6. Step 6: Final answer
    x = 863,574.41

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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.