Home / 824,811.81-1,237,411.31-256,163.46

Finding the Fourth Proportional to 824,811.81, 1,237,411.31 and 256,163.46

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Solution

The fourth proportional to 824,811.81, 1,237,411.31 and 256,163.46 is: 384,305.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,811.81 : 1,237,411.31 = 256,163.46 : x
  2. Step 2: Convert to fraction form
    824,811.81/1,237,411.31 = 256,163.46/x
  3. Step 3: Cross multiply
    824,811.81x = 1,237,411.31 × 256,163.46
  4. Step 4: Simplify right side
    824,811.81x = 316,979,561,331.92
  5. Step 5: Solve for x
    x = 316,979,561,331.92/824,811.81
  6. Step 6: Final answer
    x = 384,305.31

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Double scale
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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.