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Finding the Fourth Proportional to 6,460,854.54, 8,916,039.05 and 3,560,349.21

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Solution

The fourth proportional to 6,460,854.54, 8,916,039.05 and 3,560,349.21 is: 4,913,314.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,460,854.54 : 8,916,039.05 = 3,560,349.21 : x
  2. Step 2: Convert to fraction form
    6,460,854.54/8,916,039.05 = 3,560,349.21/x
  3. Step 3: Cross multiply
    6,460,854.54x = 8,916,039.05 × 3,560,349.21
  4. Step 4: Simplify right side
    6,460,854.54x = 31,744,212,570,194.90
  5. Step 5: Solve for x
    x = 31,744,212,570,194.90/6,460,854.54
  6. Step 6: Final answer
    x = 4,913,314.85

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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.