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Finding the Fourth Proportional to 4,937,879.83, 7,406,071.31 and 1,343,926.84

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Solution

The fourth proportional to 4,937,879.83, 7,406,071.31 and 1,343,926.84 is: 2,015,686.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,937,879.83 : 7,406,071.31 = 1,343,926.84 : x
  2. Step 2: Convert to fraction form
    4,937,879.83/7,406,071.31 = 1,343,926.84/x
  3. Step 3: Cross multiply
    4,937,879.83x = 7,406,071.31 × 1,343,926.84
  4. Step 4: Simplify right side
    4,937,879.83x = 9,953,218,012,462.96
  5. Step 5: Solve for x
    x = 9,953,218,012,462.96/4,937,879.83
  6. Step 6: Final answer
    x = 2,015,686.56

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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.