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Finding the Fourth Proportional to 1,718,892.96, 2,371,933.44 and 993,787.42

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Solution

The fourth proportional to 1,718,892.96, 2,371,933.44 and 993,787.42 is: 1,371,346.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718,892.96 : 2,371,933.44 = 993,787.42 : x
  2. Step 2: Convert to fraction form
    1,718,892.96/2,371,933.44 = 993,787.42/x
  3. Step 3: Cross multiply
    1,718,892.96x = 2,371,933.44 × 993,787.42
  4. Step 4: Simplify right side
    1,718,892.96x = 2,357,197,610,328.80
  5. Step 5: Solve for x
    x = 2,357,197,610,328.80/1,718,892.96
  6. Step 6: Final answer
    x = 1,371,346.36

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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.