Home / 385,789.80-579,058.20-186,250.20

Finding the Fourth Proportional to 385,789.80, 579,058.20 and 186,250.20

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Solution

The fourth proportional to 385,789.80, 579,058.20 and 186,250.20 is: 279,555.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,789.80 : 579,058.20 = 186,250.20 : x
  2. Step 2: Convert to fraction form
    385,789.80/579,058.20 = 186,250.20/x
  3. Step 3: Cross multiply
    385,789.80x = 579,058.20 × 186,250.20
  4. Step 4: Simplify right side
    385,789.80x = 107,849,705,561.64
  5. Step 5: Solve for x
    x = 107,849,705,561.64/385,789.80
  6. Step 6: Final answer
    x = 279,555.62

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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.