Home / 811,419.23-1,119,648.85-462,604.63

Finding the Fourth Proportional to 811,419.23, 1,119,648.85 and 462,604.63

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Solution

The fourth proportional to 811,419.23, 1,119,648.85 and 462,604.63 is: 638,331.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,419.23 : 1,119,648.85 = 462,604.63 : x
  2. Step 2: Convert to fraction form
    811,419.23/1,119,648.85 = 462,604.63/x
  3. Step 3: Cross multiply
    811,419.23x = 1,119,648.85 × 462,604.63
  4. Step 4: Simplify right side
    811,419.23x = 517,954,743,626.79
  5. Step 5: Solve for x
    x = 517,954,743,626.79/811,419.23
  6. Step 6: Final answer
    x = 638,331.86

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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.