Home / 812,085.30-1,215,503.55-633,626.10

Finding the Fourth Proportional to 812,085.30, 1,215,503.55 and 633,626.10

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Solution

The fourth proportional to 812,085.30, 1,215,503.55 and 633,626.10 is: 948,391.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,085.30 : 1,215,503.55 = 633,626.10 : x
  2. Step 2: Convert to fraction form
    812,085.30/1,215,503.55 = 633,626.10/x
  3. Step 3: Cross multiply
    812,085.30x = 1,215,503.55 × 633,626.10
  4. Step 4: Simplify right side
    812,085.30x = 770,174,773,922.66
  5. Step 5: Solve for x
    x = 770,174,773,922.66/812,085.30
  6. Step 6: Final answer
    x = 948,391.47

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.