Home / 649,786.28-896,345.01-377,824.12

Finding the Fourth Proportional to 649,786.28, 896,345.01 and 377,824.12

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Solution

The fourth proportional to 649,786.28, 896,345.01 and 377,824.12 is: 521,187.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,786.28 : 896,345.01 = 377,824.12 : x
  2. Step 2: Convert to fraction form
    649,786.28/896,345.01 = 377,824.12/x
  3. Step 3: Cross multiply
    649,786.28x = 896,345.01 × 377,824.12
  4. Step 4: Simplify right side
    649,786.28x = 338,660,762,378.78
  5. Step 5: Solve for x
    x = 338,660,762,378.78/649,786.28
  6. Step 6: Final answer
    x = 521,187.93

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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.