Home / 1,109,123.10-1,530,660.77-625,511.79

Finding the Fourth Proportional to 1,109,123.10, 1,530,660.77 and 625,511.79

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Solution

The fourth proportional to 1,109,123.10, 1,530,660.77 and 625,511.79 is: 863,246.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,123.10 : 1,530,660.77 = 625,511.79 : x
  2. Step 2: Convert to fraction form
    1,109,123.10/1,530,660.77 = 625,511.79/x
  3. Step 3: Cross multiply
    1,109,123.10x = 1,530,660.77 × 625,511.79
  4. Step 4: Simplify right side
    1,109,123.10x = 957,446,358,125.48
  5. Step 5: Solve for x
    x = 957,446,358,125.48/1,109,123.10
  6. Step 6: Final answer
    x = 863,246.25

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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.