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Finding the Fourth Proportional to 449,091, 619,746.12 and 247,887

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Solution

The fourth proportional to 449,091, 619,746.12 and 247,887 is: 342,084.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,091 : 619,746.12 = 247,887 : x
  2. Step 2: Convert to fraction form
    449,091/619,746.12 = 247,887/x
  3. Step 3: Cross multiply
    449,091x = 619,746.12 × 247,887
  4. Step 4: Simplify right side
    449,091x = 153,627,006,448.44
  5. Step 5: Solve for x
    x = 153,627,006,448.44/449,091
  6. Step 6: Final answer
    x = 342,084.36

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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.