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Finding the Fourth Proportional to 6,754,343.40, 9,320,978.34 and 3,698,530.92

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Solution

The fourth proportional to 6,754,343.40, 9,320,978.34 and 3,698,530.92 is: 5,103,964.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,754,343.40 : 9,320,978.34 = 3,698,530.92 : x
  2. Step 2: Convert to fraction form
    6,754,343.40/9,320,978.34 = 3,698,530.92/x
  3. Step 3: Cross multiply
    6,754,343.40x = 9,320,978.34 × 3,698,530.92
  4. Step 4: Simplify right side
    6,754,343.40x = 34,473,926,595,140.27
  5. Step 5: Solve for x
    x = 34,473,926,595,140.27/6,754,343.40
  6. Step 6: Final answer
    x = 5,103,964.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.