Home / 828,161.20-1,142,855.57-465,586.67

Finding the Fourth Proportional to 828,161.20, 1,142,855.57 and 465,586.67

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Solution

The fourth proportional to 828,161.20, 1,142,855.57 and 465,586.67 is: 642,505.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,161.20 : 1,142,855.57 = 465,586.67 : x
  2. Step 2: Convert to fraction form
    828,161.20/1,142,855.57 = 465,586.67/x
  3. Step 3: Cross multiply
    828,161.20x = 1,142,855.57 × 465,586.67
  4. Step 4: Simplify right side
    828,161.20x = 532,098,319,127.25
  5. Step 5: Solve for x
    x = 532,098,319,127.25/828,161.20
  6. Step 6: Final answer
    x = 642,505.73

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Double scale
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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.