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Finding the Fourth Proportional to 1,718,893.81, 2,371,934.60 and 993,788.27

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Solution

The fourth proportional to 1,718,893.81, 2,371,934.60 and 993,788.27 is: 1,371,347.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718,893.81 : 2,371,934.60 = 993,788.27 : x
  2. Step 2: Convert to fraction form
    1,718,893.81/2,371,934.60 = 993,788.27/x
  3. Step 3: Cross multiply
    1,718,893.81x = 2,371,934.60 × 993,788.27
  4. Step 4: Simplify right side
    1,718,893.81x = 2,357,200,774,603.95
  5. Step 5: Solve for x
    x = 2,357,200,774,603.95/1,718,893.81
  6. Step 6: Final answer
    x = 1,371,347.53

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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.