Home / 1,278,566.80-1,916,521.80-520,082.80

Finding the Fourth Proportional to 1,278,566.80, 1,916,521.80 and 520,082.80

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Solution

The fourth proportional to 1,278,566.80, 1,916,521.80 and 520,082.80 is: 779,583.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,566.80 : 1,916,521.80 = 520,082.80 : x
  2. Step 2: Convert to fraction form
    1,278,566.80/1,916,521.80 = 520,082.80/x
  3. Step 3: Cross multiply
    1,278,566.80x = 1,916,521.80 × 520,082.80
  4. Step 4: Simplify right side
    1,278,566.80x = 996,750,024,005.04
  5. Step 5: Solve for x
    x = 996,750,024,005.04/1,278,566.80
  6. Step 6: Final answer
    x = 779,583.85

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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.