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Finding the Fourth Proportional to 3,276,357.05, 4,914,203.42 and 879,890.29

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Solution

The fourth proportional to 3,276,357.05, 4,914,203.42 and 879,890.29 is: 1,319,746.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,276,357.05 : 4,914,203.42 = 879,890.29 : x
  2. Step 2: Convert to fraction form
    3,276,357.05/4,914,203.42 = 879,890.29/x
  3. Step 3: Cross multiply
    3,276,357.05x = 4,914,203.42 × 879,890.29
  4. Step 4: Simplify right side
    3,276,357.05x = 4,323,959,889,899.40
  5. Step 5: Solve for x
    x = 4,323,959,889,899.40/3,276,357.05
  6. Step 6: Final answer
    x = 1,319,746.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.