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Finding the Fourth Proportional to 6,604,390.40, 9,898,712.40 and 2,766,205.40

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Solution

The fourth proportional to 6,604,390.40, 9,898,712.40 and 2,766,205.40 is: 4,146,010.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,604,390.40 : 9,898,712.40 = 2,766,205.40 : x
  2. Step 2: Convert to fraction form
    6,604,390.40/9,898,712.40 = 2,766,205.40/x
  3. Step 3: Cross multiply
    6,604,390.40x = 9,898,712.40 × 2,766,205.40
  4. Step 4: Simplify right side
    6,604,390.40x = 27,381,871,693,926.96
  5. Step 5: Solve for x
    x = 27,381,871,693,926.96/6,604,390.40
  6. Step 6: Final answer
    x = 4,146,010.46

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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.