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Finding the Fourth Proportional to 1,899,433.92, 2,849,187.36 and 700,739.28

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Solution

The fourth proportional to 1,899,433.92, 2,849,187.36 and 700,739.28 is: 1,051,122.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899,433.92 : 2,849,187.36 = 700,739.28 : x
  2. Step 2: Convert to fraction form
    1,899,433.92/2,849,187.36 = 700,739.28/x
  3. Step 3: Cross multiply
    1,899,433.92x = 2,849,187.36 × 700,739.28
  4. Step 4: Simplify right side
    1,899,433.92x = 1,996,537,499,231.50
  5. Step 5: Solve for x
    x = 1,996,537,499,231.50/1,899,433.92
  6. Step 6: Final answer
    x = 1,051,122.38

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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.