Home / 1,885,689.80-2,828,534.70-687,651.20

Finding the Fourth Proportional to 1,885,689.80, 2,828,534.70 and 687,651.20

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Solution

The fourth proportional to 1,885,689.80, 2,828,534.70 and 687,651.20 is: 1,031,476.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885,689.80 : 2,828,534.70 = 687,651.20 : x
  2. Step 2: Convert to fraction form
    1,885,689.80/2,828,534.70 = 687,651.20/x
  3. Step 3: Cross multiply
    1,885,689.80x = 2,828,534.70 × 687,651.20
  4. Step 4: Simplify right side
    1,885,689.80x = 1,945,045,280,696.64
  5. Step 5: Solve for x
    x = 1,945,045,280,696.64/1,885,689.80
  6. Step 6: Final answer
    x = 1,031,476.80

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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.