Home / 945,920.35-1,305,398.91-538,081.30

Finding the Fourth Proportional to 945,920.35, 1,305,398.91 and 538,081.30

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Solution

The fourth proportional to 945,920.35, 1,305,398.91 and 538,081.30 is: 742,568.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,920.35 : 1,305,398.91 = 538,081.30 : x
  2. Step 2: Convert to fraction form
    945,920.35/1,305,398.91 = 538,081.30/x
  3. Step 3: Cross multiply
    945,920.35x = 1,305,398.91 × 538,081.30
  4. Step 4: Simplify right side
    945,920.35x = 702,410,742,511.38
  5. Step 5: Solve for x
    x = 702,410,742,511.38/945,920.35
  6. Step 6: Final answer
    x = 742,568.59

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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.