Home / 811,766.79-1,120,356.44-467,535.74

Finding the Fourth Proportional to 811,766.79, 1,120,356.44 and 467,535.74

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Solution

The fourth proportional to 811,766.79, 1,120,356.44 and 467,535.74 is: 645,267.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,766.79 : 1,120,356.44 = 467,535.74 : x
  2. Step 2: Convert to fraction form
    811,766.79/1,120,356.44 = 467,535.74/x
  3. Step 3: Cross multiply
    811,766.79x = 1,120,356.44 × 467,535.74
  4. Step 4: Simplify right side
    811,766.79x = 523,806,669,299.71
  5. Step 5: Solve for x
    x = 523,806,669,299.71/811,766.79
  6. Step 6: Final answer
    x = 645,267.43

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Half scale
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Double scale
Find fourth proportional to 811,767.79, 1,120,357.82 and 467,536.74
Similar ratio
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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.