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Finding the Fourth Proportional to 393,726.68, 589,703.67 and 275,923.93

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Solution

The fourth proportional to 393,726.68, 589,703.67 and 275,923.93 is: 413,264.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,726.68 : 589,703.67 = 275,923.93 : x
  2. Step 2: Convert to fraction form
    393,726.68/589,703.67 = 275,923.93/x
  3. Step 3: Cross multiply
    393,726.68x = 589,703.67 × 275,923.93
  4. Step 4: Simplify right side
    393,726.68x = 162,713,354,161.82
  5. Step 5: Solve for x
    x = 162,713,354,161.82/393,726.68
  6. Step 6: Final answer
    x = 413,264.74

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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.