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Finding the Fourth Proportional to 3,607,609.35, 4,978,439.31 and 1,953,743.07

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Solution

The fourth proportional to 3,607,609.35, 4,978,439.31 and 1,953,743.07 is: 2,696,132.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607,609.35 : 4,978,439.31 = 1,953,743.07 : x
  2. Step 2: Convert to fraction form
    3,607,609.35/4,978,439.31 = 1,953,743.07/x
  3. Step 3: Cross multiply
    3,607,609.35x = 4,978,439.31 × 1,953,743.07
  4. Step 4: Simplify right side
    3,607,609.35x = 9,726,591,301,328.08
  5. Step 5: Solve for x
    x = 9,726,591,301,328.08/3,607,609.35
  6. Step 6: Final answer
    x = 2,696,132.08

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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.