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Finding the Fourth Proportional to 6,240,718.80, 9,361,985.40 and 2,646,478.80

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Solution

The fourth proportional to 6,240,718.80, 9,361,985.40 and 2,646,478.80 is: 3,970,102.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240,718.80 : 9,361,985.40 = 2,646,478.80 : x
  2. Step 2: Convert to fraction form
    6,240,718.80/9,361,985.40 = 2,646,478.80/x
  3. Step 3: Cross multiply
    6,240,718.80x = 9,361,985.40 × 2,646,478.80
  4. Step 4: Simplify right side
    6,240,718.80x = 24,776,295,887,009.52
  5. Step 5: Solve for x
    x = 24,776,295,887,009.52/6,240,718.80
  6. Step 6: Final answer
    x = 3,970,102.91

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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.