Home / 318,550.77-439,577.41-189,482.13

Finding the Fourth Proportional to 318,550.77, 439,577.41 and 189,482.13

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Solution

The fourth proportional to 318,550.77, 439,577.41 and 189,482.13 is: 261,471.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,550.77 : 439,577.41 = 189,482.13 : x
  2. Step 2: Convert to fraction form
    318,550.77/439,577.41 = 189,482.13/x
  3. Step 3: Cross multiply
    318,550.77x = 439,577.41 × 189,482.13
  4. Step 4: Simplify right side
    318,550.77x = 83,292,063,472.98
  5. Step 5: Solve for x
    x = 83,292,063,472.98/318,550.77
  6. Step 6: Final answer
    x = 261,471.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.