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Finding the Fourth Proportional to 5,756,310.64, 8,638,978.32 and 4,015,862.19

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Solution

The fourth proportional to 5,756,310.64, 8,638,978.32 and 4,015,862.19 is: 6,026,941.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,756,310.64 : 8,638,978.32 = 4,015,862.19 : x
  2. Step 2: Convert to fraction form
    5,756,310.64/8,638,978.32 = 4,015,862.19/x
  3. Step 3: Cross multiply
    5,756,310.64x = 8,638,978.32 × 4,015,862.19
  4. Step 4: Simplify right side
    5,756,310.64x = 34,692,946,395,517.72
  5. Step 5: Solve for x
    x = 34,692,946,395,517.72/5,756,310.64
  6. Step 6: Final answer
    x = 6,026,941.31

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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.