Home / 457,981.93-686,974.66-191,555.56

Finding the Fourth Proportional to 457,981.93, 686,974.66 and 191,555.56

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Solution

The fourth proportional to 457,981.93, 686,974.66 and 191,555.56 is: 287,334.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,981.93 : 686,974.66 = 191,555.56 : x
  2. Step 2: Convert to fraction form
    457,981.93/686,974.66 = 191,555.56/x
  3. Step 3: Cross multiply
    457,981.93x = 686,974.66 × 191,555.56
  4. Step 4: Simplify right side
    457,981.93x = 131,593,817,159.44
  5. Step 5: Solve for x
    x = 131,593,817,159.44/457,981.93
  6. Step 6: Final answer
    x = 287,334.08

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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.