Home / 761,626.21-1,051,044.15-422,116.33

Finding the Fourth Proportional to 761,626.21, 1,051,044.15 and 422,116.33

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Solution

The fourth proportional to 761,626.21, 1,051,044.15 and 422,116.33 is: 582,520.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,626.21 : 1,051,044.15 = 422,116.33 : x
  2. Step 2: Convert to fraction form
    761,626.21/1,051,044.15 = 422,116.33/x
  3. Step 3: Cross multiply
    761,626.21x = 1,051,044.15 × 422,116.33
  4. Step 4: Simplify right side
    761,626.21x = 443,662,899,265.97
  5. Step 5: Solve for x
    x = 443,662,899,265.97/761,626.21
  6. Step 6: Final answer
    x = 582,520.52

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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.