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Finding the Fourth Proportional to 2,648,893.60, 3,973,340.40 and 1,301,920.30

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Solution

The fourth proportional to 2,648,893.60, 3,973,340.40 and 1,301,920.30 is: 1,952,880.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,648,893.60 : 3,973,340.40 = 1,301,920.30 : x
  2. Step 2: Convert to fraction form
    2,648,893.60/3,973,340.40 = 1,301,920.30/x
  3. Step 3: Cross multiply
    2,648,893.60x = 3,973,340.40 × 1,301,920.30
  4. Step 4: Simplify right side
    2,648,893.60x = 5,172,972,525,570.12
  5. Step 5: Solve for x
    x = 5,172,972,525,570.12/2,648,893.60
  6. Step 6: Final answer
    x = 1,952,880.45

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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.