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Finding the Fourth Proportional to 6,623,998.90, 9,935,998.35 and 1,896,190.90

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Solution

The fourth proportional to 6,623,998.90, 9,935,998.35 and 1,896,190.90 is: 2,844,286.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,623,998.90 : 9,935,998.35 = 1,896,190.90 : x
  2. Step 2: Convert to fraction form
    6,623,998.90/9,935,998.35 = 1,896,190.90/x
  3. Step 3: Cross multiply
    6,623,998.90x = 9,935,998.35 × 1,896,190.90
  4. Step 4: Simplify right side
    6,623,998.90x = 18,840,549,653,685.01
  5. Step 5: Solve for x
    x = 18,840,549,653,685.01/6,623,998.90
  6. Step 6: Final answer
    x = 2,844,286.35

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Double scale
Find fourth proportional to 6,623,999.90, 9,935,999.85 and 1,896,191.90
Similar ratio
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1.5x scale

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.