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Finding the Fourth Proportional to 1,792,700, 2,473,926 and 987,884

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Solution

The fourth proportional to 1,792,700, 2,473,926 and 987,884 is: 1,363,279.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792,700 : 2,473,926 = 987,884 : x
  2. Step 2: Convert to fraction form
    1,792,700/2,473,926 = 987,884/x
  3. Step 3: Cross multiply
    1,792,700x = 2,473,926 × 987,884
  4. Step 4: Simplify right side
    1,792,700x = 2,443,951,912,584
  5. Step 5: Solve for x
    x = 2,443,951,912,584/1,792,700
  6. Step 6: Final answer
    x = 1,363,279.92

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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.