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Finding the Fourth Proportional to 3,607,607.86, 4,978,437.26 and 1,953,741.55

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Solution

The fourth proportional to 3,607,607.86, 4,978,437.26 and 1,953,741.55 is: 2,696,129.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607,607.86 : 4,978,437.26 = 1,953,741.55 : x
  2. Step 2: Convert to fraction form
    3,607,607.86/4,978,437.26 = 1,953,741.55/x
  3. Step 3: Cross multiply
    3,607,607.86x = 4,978,437.26 × 1,953,741.55
  4. Step 4: Simplify right side
    3,607,607.86x = 9,726,579,728,930.15
  5. Step 5: Solve for x
    x = 9,726,579,728,930.15/3,607,607.86
  6. Step 6: Final answer
    x = 2,696,129.99

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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.