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Finding the Fourth Proportional to 6,646,151.06, 9,968,340.69 and 1,853,438.97

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Solution

The fourth proportional to 6,646,151.06, 9,968,340.69 and 1,853,438.97 is: 2,779,911.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,646,151.06 : 9,968,340.69 = 1,853,438.97 : x
  2. Step 2: Convert to fraction form
    6,646,151.06/9,968,340.69 = 1,853,438.97/x
  3. Step 3: Cross multiply
    6,646,151.06x = 9,968,340.69 × 1,853,438.97
  4. Step 4: Simplify right side
    6,646,151.06x = 18,475,711,101,082.69
  5. Step 5: Solve for x
    x = 18,475,711,101,082.69/6,646,151.06
  6. Step 6: Final answer
    x = 2,779,911.40

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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.