Home / 828,161.46-1,142,855.94-465,586.92

Finding the Fourth Proportional to 828,161.46, 1,142,855.94 and 465,586.92

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Solution

The fourth proportional to 828,161.46, 1,142,855.94 and 465,586.92 is: 642,506.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,161.46 : 1,142,855.94 = 465,586.92 : x
  2. Step 2: Convert to fraction form
    828,161.46/1,142,855.94 = 465,586.92/x
  3. Step 3: Cross multiply
    828,161.46x = 1,142,855.94 × 465,586.92
  4. Step 4: Simplify right side
    828,161.46x = 532,098,777,108.31
  5. Step 5: Solve for x
    x = 532,098,777,108.31/828,161.46
  6. Step 6: Final answer
    x = 642,506.08

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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.