Home / 2,082,666.80-3,117,779.40-1,240,785.20

Finding the Fourth Proportional to 2,082,666.80, 3,117,779.40 and 1,240,785.20

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Solution

The fourth proportional to 2,082,666.80, 3,117,779.40 and 1,240,785.20 is: 1,857,471.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082,666.80 : 3,117,779.40 = 1,240,785.20 : x
  2. Step 2: Convert to fraction form
    2,082,666.80/3,117,779.40 = 1,240,785.20/x
  3. Step 3: Cross multiply
    2,082,666.80x = 3,117,779.40 × 1,240,785.20
  4. Step 4: Simplify right side
    2,082,666.80x = 3,868,494,536,384.88
  5. Step 5: Solve for x
    x = 3,868,494,536,384.88/2,082,666.80
  6. Step 6: Final answer
    x = 1,857,471.65

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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.