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Finding the Fourth Proportional to 1,205,437, 1,663,580.82 and 668,893

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Solution

The fourth proportional to 1,205,437, 1,663,580.82 and 668,893 is: 923,115.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,437 : 1,663,580.82 = 668,893 : x
  2. Step 2: Convert to fraction form
    1,205,437/1,663,580.82 = 668,893/x
  3. Step 3: Cross multiply
    1,205,437x = 1,663,580.82 × 668,893
  4. Step 4: Simplify right side
    1,205,437x = 1,112,757,565,432.26
  5. Step 5: Solve for x
    x = 1,112,757,565,432.26/1,205,437
  6. Step 6: Final answer
    x = 923,115.49

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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.