Home / 691,263.92-1,036,895.88-217,997.12

Finding the Fourth Proportional to 691,263.92, 1,036,895.88 and 217,997.12

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Solution

The fourth proportional to 691,263.92, 1,036,895.88 and 217,997.12 is: 326,995.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,263.92 : 1,036,895.88 = 217,997.12 : x
  2. Step 2: Convert to fraction form
    691,263.92/1,036,895.88 = 217,997.12/x
  3. Step 3: Cross multiply
    691,263.92x = 1,036,895.88 × 217,997.12
  4. Step 4: Simplify right side
    691,263.92x = 226,040,318,989.60
  5. Step 5: Solve for x
    x = 226,040,318,989.60/691,263.92
  6. Step 6: Final answer
    x = 326,995.68

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Half scale
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Double scale
Find fourth proportional to 691,264.92, 1,036,897.38 and 217,998.12
Similar ratio
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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.