Home / 578,753.40-867,611.70-379,169.40

Finding the Fourth Proportional to 578,753.40, 867,611.70 and 379,169.40

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Solution

The fourth proportional to 578,753.40, 867,611.70 and 379,169.40 is: 568,414.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,753.40 : 867,611.70 = 379,169.40 : x
  2. Step 2: Convert to fraction form
    578,753.40/867,611.70 = 379,169.40/x
  3. Step 3: Cross multiply
    578,753.40x = 867,611.70 × 379,169.40
  4. Step 4: Simplify right side
    578,753.40x = 328,971,807,721.98
  5. Step 5: Solve for x
    x = 328,971,807,721.98/578,753.40
  6. Step 6: Final answer
    x = 568,414.47

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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.