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Finding the Fourth Proportional to 330,242,628.60, 495,363,942.90 and 177,187,620.60

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Solution

The fourth proportional to 330,242,628.60, 495,363,942.90 and 177,187,620.60 is: 265,781,430.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,242,628.60 : 495,363,942.90 = 177,187,620.60 : x
  2. Step 2: Convert to fraction form
    330,242,628.60/495,363,942.90 = 177,187,620.60/x
  3. Step 3: Cross multiply
    330,242,628.60x = 495,363,942.90 × 177,187,620.60
  4. Step 4: Simplify right side
    330,242,628.60x = 87,772,358,373,485,264
  5. Step 5: Solve for x
    x = 87,772,358,373,485,264/330,242,628.60
  6. Step 6: Final answer
    x = 265,781,430.90

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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.