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Finding the Fourth Proportional to 628,992,124.80, 943,488,187.20 and 628,992,124.80

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Solution

The fourth proportional to 628,992,124.80, 943,488,187.20 and 628,992,124.80 is: 943,488,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,992,124.80 : 943,488,187.20 = 628,992,124.80 : x
  2. Step 2: Convert to fraction form
    628,992,124.80/943,488,187.20 = 628,992,124.80/x
  3. Step 3: Cross multiply
    628,992,124.80x = 943,488,187.20 × 628,992,124.80
  4. Step 4: Simplify right side
    628,992,124.80x = 593,446,639,590,628,096
  5. Step 5: Solve for x
    x = 593,446,639,590,628,096/628,992,124.80
  6. Step 6: Final answer
    x = 943,488,187.20

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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.