Home / 863,100.65-1,190,845.23-490,558.42

Finding the Fourth Proportional to 863,100.65, 1,190,845.23 and 490,558.42

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Solution

The fourth proportional to 863,100.65, 1,190,845.23 and 490,558.42 is: 676,837.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,100.65 : 1,190,845.23 = 490,558.42 : x
  2. Step 2: Convert to fraction form
    863,100.65/1,190,845.23 = 490,558.42/x
  3. Step 3: Cross multiply
    863,100.65x = 1,190,845.23 × 490,558.42
  4. Step 4: Simplify right side
    863,100.65x = 584,179,151,516.22
  5. Step 5: Solve for x
    x = 584,179,151,516.22/863,100.65
  6. Step 6: Final answer
    x = 676,837.81

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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.