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Finding the Fourth Proportional to 498,428,045.15, 747,642,067.73 and 498,428,045.15

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Solution

The fourth proportional to 498,428,045.15, 747,642,067.73 and 498,428,045.15 is: 747,642,067.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,428,045.15 : 747,642,067.73 = 498,428,045.15 : x
  2. Step 2: Convert to fraction form
    498,428,045.15/747,642,067.73 = 498,428,045.15/x
  3. Step 3: Cross multiply
    498,428,045.15x = 747,642,067.73 × 498,428,045.15
  4. Step 4: Simplify right side
    498,428,045.15x = 372,645,774,288,075,648
  5. Step 5: Solve for x
    x = 372,645,774,288,075,648/498,428,045.15
  6. Step 6: Final answer
    x = 747,642,067.73

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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.