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Finding the Fourth Proportional to 1,826,462.16, 2,739,711.74 and 815,635.62

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Solution

The fourth proportional to 1,826,462.16, 2,739,711.74 and 815,635.62 is: 1,223,461.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,826,462.16 : 2,739,711.74 = 815,635.62 : x
  2. Step 2: Convert to fraction form
    1,826,462.16/2,739,711.74 = 815,635.62/x
  3. Step 3: Cross multiply
    1,826,462.16x = 2,739,711.74 × 815,635.62
  4. Step 4: Simplify right side
    1,826,462.16x = 2,234,606,479,598.00
  5. Step 5: Solve for x
    x = 2,234,606,479,598.00/1,826,462.16
  6. Step 6: Final answer
    x = 1,223,461.69

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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.