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Finding the Fourth Proportional to 3,887,640.96, 5,831,440.66 and 1,009,005.67

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Solution

The fourth proportional to 3,887,640.96, 5,831,440.66 and 1,009,005.67 is: 1,513,503.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887,640.96 : 5,831,440.66 = 1,009,005.67 : x
  2. Step 2: Convert to fraction form
    3,887,640.96/5,831,440.66 = 1,009,005.67/x
  3. Step 3: Cross multiply
    3,887,640.96x = 5,831,440.66 × 1,009,005.67
  4. Step 4: Simplify right side
    3,887,640.96x = 5,883,956,690,208.54
  5. Step 5: Solve for x
    x = 5,883,956,690,208.54/3,887,640.96
  6. Step 6: Final answer
    x = 1,513,503.11

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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.