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Finding the Fourth Proportional to 1,663,752.33, 2,295,978.22 and 899,805.90

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Solution

The fourth proportional to 1,663,752.33, 2,295,978.22 and 899,805.90 is: 1,241,732.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663,752.33 : 2,295,978.22 = 899,805.90 : x
  2. Step 2: Convert to fraction form
    1,663,752.33/2,295,978.22 = 899,805.90/x
  3. Step 3: Cross multiply
    1,663,752.33x = 2,295,978.22 × 899,805.90
  4. Step 4: Simplify right side
    1,663,752.33x = 2,065,934,734,898.09
  5. Step 5: Solve for x
    x = 2,065,934,734,898.09/1,663,752.33
  6. Step 6: Final answer
    x = 1,241,732.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.