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Finding the Fourth Proportional to 3,168,978.80, 4,373,749.76 and 1,880,529.64

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Solution

The fourth proportional to 3,168,978.80, 4,373,749.76 and 1,880,529.64 is: 2,595,462.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168,978.80 : 4,373,749.76 = 1,880,529.64 : x
  2. Step 2: Convert to fraction form
    3,168,978.80/4,373,749.76 = 1,880,529.64/x
  3. Step 3: Cross multiply
    3,168,978.80x = 4,373,749.76 × 1,880,529.64
  4. Step 4: Simplify right side
    3,168,978.80x = 8,224,966,061,622.89
  5. Step 5: Solve for x
    x = 8,224,966,061,622.89/3,168,978.80
  6. Step 6: Final answer
    x = 2,595,462.63

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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.