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Finding the Fourth Proportional to 1,173,092, 1,618,868.04 and 636,548

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Solution

The fourth proportional to 1,173,092, 1,618,868.04 and 636,548 is: 878,436.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,092 : 1,618,868.04 = 636,548 : x
  2. Step 2: Convert to fraction form
    1,173,092/1,618,868.04 = 636,548/x
  3. Step 3: Cross multiply
    1,173,092x = 1,618,868.04 × 636,548
  4. Step 4: Simplify right side
    1,173,092x = 1,030,487,213,125.92
  5. Step 5: Solve for x
    x = 1,030,487,213,125.92/1,173,092
  6. Step 6: Final answer
    x = 878,436.83

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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.