Home / 385,943.85-578,971.86-119,725.59

Finding the Fourth Proportional to 385,943.85, 578,971.86 and 119,725.59

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Solution

The fourth proportional to 385,943.85, 578,971.86 and 119,725.59 is: 179,605.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,943.85 : 578,971.86 = 119,725.59 : x
  2. Step 2: Convert to fraction form
    385,943.85/578,971.86 = 119,725.59/x
  3. Step 3: Cross multiply
    385,943.85x = 578,971.86 × 119,725.59
  4. Step 4: Simplify right side
    385,943.85x = 69,317,747,531.90
  5. Step 5: Solve for x
    x = 69,317,747,531.90/385,943.85
  6. Step 6: Final answer
    x = 179,605.78

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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.