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Finding the Fourth Proportional to 313,070,469.20, 469,605,703.80 and 196,673,080.40

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Solution

The fourth proportional to 313,070,469.20, 469,605,703.80 and 196,673,080.40 is: 295,009,620.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,070,469.20 : 469,605,703.80 = 196,673,080.40 : x
  2. Step 2: Convert to fraction form
    313,070,469.20/469,605,703.80 = 196,673,080.40/x
  3. Step 3: Cross multiply
    313,070,469.20x = 469,605,703.80 × 196,673,080.40
  4. Step 4: Simplify right side
    313,070,469.20x = 92,358,800,339,755,984
  5. Step 5: Solve for x
    x = 92,358,800,339,755,984/313,070,469.20
  6. Step 6: Final answer
    x = 295,009,620.60

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1.5x scale

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.