Home / 649,302.39-896,020.11-362,824.83

Finding the Fourth Proportional to 649,302.39, 896,020.11 and 362,824.83

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Solution

The fourth proportional to 649,302.39, 896,020.11 and 362,824.83 is: 500,688.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,302.39 : 896,020.11 = 362,824.83 : x
  2. Step 2: Convert to fraction form
    649,302.39/896,020.11 = 362,824.83/x
  3. Step 3: Cross multiply
    649,302.39x = 896,020.11 × 362,824.83
  4. Step 4: Simplify right side
    649,302.39x = 325,098,344,087.33
  5. Step 5: Solve for x
    x = 325,098,344,087.33/649,302.39
  6. Step 6: Final answer
    x = 500,688.66

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Half scale
Find fourth proportional to 1,298,604.78, 1,792,040.22 and 725,649.66
Double scale
Find fourth proportional to 649,303.39, 896,021.49 and 362,825.83
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.