Home / 827,371.23-1,141,787.70-459,882.78

Finding the Fourth Proportional to 827,371.23, 1,141,787.70 and 459,882.78

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Solution

The fourth proportional to 827,371.23, 1,141,787.70 and 459,882.78 is: 634,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,371.23 : 1,141,787.70 = 459,882.78 : x
  2. Step 2: Convert to fraction form
    827,371.23/1,141,787.70 = 459,882.78/x
  3. Step 3: Cross multiply
    827,371.23x = 1,141,787.70 × 459,882.78
  4. Step 4: Simplify right side
    827,371.23x = 525,088,501,645.81
  5. Step 5: Solve for x
    x = 525,088,501,645.81/827,371.23
  6. Step 6: Final answer
    x = 634,646.80

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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.