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Finding the Fourth Proportional to 606,918,910.80, 910,378,366.20 and 453,863,902.80

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Solution

The fourth proportional to 606,918,910.80, 910,378,366.20 and 453,863,902.80 is: 680,795,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,918,910.80 : 910,378,366.20 = 453,863,902.80 : x
  2. Step 2: Convert to fraction form
    606,918,910.80/910,378,366.20 = 453,863,902.80/x
  3. Step 3: Cross multiply
    606,918,910.80x = 910,378,366.20 × 453,863,902.80
  4. Step 4: Simplify right side
    606,918,910.80x = 413,187,878,308,219,648
  5. Step 5: Solve for x
    x = 413,187,878,308,219,648/606,918,910.80
  6. Step 6: Final answer
    x = 680,795,854.20

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Double scale
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Similar ratio
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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.