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Finding the Fourth Proportional to 1,998,209.52, 2,997,756.54 and 932,669.64

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Solution

The fourth proportional to 1,998,209.52, 2,997,756.54 and 932,669.64 is: 1,399,210.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,209.52 : 2,997,756.54 = 932,669.64 : x
  2. Step 2: Convert to fraction form
    1,998,209.52/2,997,756.54 = 932,669.64/x
  3. Step 3: Cross multiply
    1,998,209.52x = 2,997,756.54 × 932,669.64
  4. Step 4: Simplify right side
    1,998,209.52x = 2,795,916,512,969.45
  5. Step 5: Solve for x
    x = 2,795,916,512,969.45/1,998,209.52
  6. Step 6: Final answer
    x = 1,399,210.89

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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.