Home / 863,095.68-1,191,136.88-500,516.38

Finding the Fourth Proportional to 863,095.68, 1,191,136.88 and 500,516.38

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Solution

The fourth proportional to 863,095.68, 1,191,136.88 and 500,516.38 is: 690,750.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,095.68 : 1,191,136.88 = 500,516.38 : x
  2. Step 2: Convert to fraction form
    863,095.68/1,191,136.88 = 500,516.38/x
  3. Step 3: Cross multiply
    863,095.68x = 1,191,136.88 × 500,516.38
  4. Step 4: Simplify right side
    863,095.68x = 596,183,519,262.09
  5. Step 5: Solve for x
    x = 596,183,519,262.09/863,095.68
  6. Step 6: Final answer
    x = 690,750.21

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Double scale
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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.