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Finding the Fourth Proportional to 5,562,978.31, 8,347,312.95 and 2,648,364.77

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Solution

The fourth proportional to 5,562,978.31, 8,347,312.95 and 2,648,364.77 is: 3,973,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,562,978.31 : 8,347,312.95 = 2,648,364.77 : x
  2. Step 2: Convert to fraction form
    5,562,978.31/8,347,312.95 = 2,648,364.77/x
  3. Step 3: Cross multiply
    5,562,978.31x = 8,347,312.95 × 2,648,364.77
  4. Step 4: Simplify right side
    5,562,978.31x = 22,106,729,540,944.77
  5. Step 5: Solve for x
    x = 22,106,729,540,944.77/5,562,978.31
  6. Step 6: Final answer
    x = 3,973,901.80

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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.