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Finding the Fourth Proportional to 5,323,195.60, 7,985,959.80 and 1,728,350.80

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Solution

The fourth proportional to 5,323,195.60, 7,985,959.80 and 1,728,350.80 is: 2,592,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,323,195.60 : 7,985,959.80 = 1,728,350.80 : x
  2. Step 2: Convert to fraction form
    5,323,195.60/7,985,959.80 = 1,728,350.80/x
  3. Step 3: Cross multiply
    5,323,195.60x = 7,985,959.80 × 1,728,350.80
  4. Step 4: Simplify right side
    5,323,195.60x = 13,802,540,009,097.84
  5. Step 5: Solve for x
    x = 13,802,540,009,097.84/5,323,195.60
  6. Step 6: Final answer
    x = 2,592,904.91

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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.