Home / 857,191.63-1,285,787.46-288,525.11

Finding the Fourth Proportional to 857,191.63, 1,285,787.46 and 288,525.11

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Solution

The fourth proportional to 857,191.63, 1,285,787.46 and 288,525.11 is: 432,787.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,191.63 : 1,285,787.46 = 288,525.11 : x
  2. Step 2: Convert to fraction form
    857,191.63/1,285,787.46 = 288,525.11/x
  3. Step 3: Cross multiply
    857,191.63x = 1,285,787.46 × 288,525.11
  4. Step 4: Simplify right side
    857,191.63x = 370,981,960,461.56
  5. Step 5: Solve for x
    x = 370,981,960,461.56/857,191.63
  6. Step 6: Final answer
    x = 432,787.66

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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.