Home / 385,553.45-578,315.77-101,241.43

Finding the Fourth Proportional to 385,553.45, 578,315.77 and 101,241.43

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Solution

The fourth proportional to 385,553.45, 578,315.77 and 101,241.43 is: 151,858.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,553.45 : 578,315.77 = 101,241.43 : x
  2. Step 2: Convert to fraction form
    385,553.45/578,315.77 = 101,241.43/x
  3. Step 3: Cross multiply
    385,553.45x = 578,315.77 × 101,241.43
  4. Step 4: Simplify right side
    385,553.45x = 58,549,513,847.46
  5. Step 5: Solve for x
    x = 58,549,513,847.46/385,553.45
  6. Step 6: Final answer
    x = 151,858.36

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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.