Home / 823,515.20-1,136,439.82-460,938.96

Finding the Fourth Proportional to 823,515.20, 1,136,439.82 and 460,938.96

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Solution

The fourth proportional to 823,515.20, 1,136,439.82 and 460,938.96 is: 636,089.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,515.20 : 1,136,439.82 = 460,938.96 : x
  2. Step 2: Convert to fraction form
    823,515.20/1,136,439.82 = 460,938.96/x
  3. Step 3: Cross multiply
    823,515.20x = 1,136,439.82 × 460,938.96
  4. Step 4: Simplify right side
    823,515.20x = 523,829,387,581.04
  5. Step 5: Solve for x
    x = 523,829,387,581.04/823,515.20
  6. Step 6: Final answer
    x = 636,089.52

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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.