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Finding the Fourth Proportional to 1,663,769.91, 2,296,002.47 and 899,823.47

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Solution

The fourth proportional to 1,663,769.91, 2,296,002.47 and 899,823.47 is: 1,241,756.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663,769.91 : 2,296,002.47 = 899,823.47 : x
  2. Step 2: Convert to fraction form
    1,663,769.91/2,296,002.47 = 899,823.47/x
  3. Step 3: Cross multiply
    1,663,769.91x = 2,296,002.47 × 899,823.47
  4. Step 4: Simplify right side
    1,663,769.91x = 2,065,996,909,683.97
  5. Step 5: Solve for x
    x = 2,065,996,909,683.97/1,663,769.91
  6. Step 6: Final answer
    x = 1,241,756.39

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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.