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Finding the Fourth Proportional to 1,992,373.92, 2,749,466.76 and 1,086,955.92

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Solution

The fourth proportional to 1,992,373.92, 2,749,466.76 and 1,086,955.92 is: 1,499,994.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,373.92 : 2,749,466.76 = 1,086,955.92 : x
  2. Step 2: Convert to fraction form
    1,992,373.92/2,749,466.76 = 1,086,955.92/x
  3. Step 3: Cross multiply
    1,992,373.92x = 2,749,466.76 × 1,086,955.92
  4. Step 4: Simplify right side
    1,992,373.92x = 2,988,549,171,625.22
  5. Step 5: Solve for x
    x = 2,988,549,171,625.22/1,992,373.92
  6. Step 6: Final answer
    x = 1,499,994.12

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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.