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Finding the Fourth Proportional to 6,610,746.40, 9,915,536.40 and 1,818,008.80

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Solution

The fourth proportional to 6,610,746.40, 9,915,536.40 and 1,818,008.80 is: 2,726,852.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,610,746.40 : 9,915,536.40 = 1,818,008.80 : x
  2. Step 2: Convert to fraction form
    6,610,746.40/9,915,536.40 = 1,818,008.80/x
  3. Step 3: Cross multiply
    6,610,746.40x = 9,915,536.40 × 1,818,008.80
  4. Step 4: Simplify right side
    6,610,746.40x = 18,026,532,431,920.32
  5. Step 5: Solve for x
    x = 18,026,532,431,920.32/6,610,746.40
  6. Step 6: Final answer
    x = 2,726,852.82

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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.