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Finding the Fourth Proportional to 655,850,147.80, 983,775,221.70 and 655,850,147.80

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Solution

The fourth proportional to 655,850,147.80, 983,775,221.70 and 655,850,147.80 is: 983,775,221.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,850,147.80 : 983,775,221.70 = 655,850,147.80 : x
  2. Step 2: Convert to fraction form
    655,850,147.80/983,775,221.70 = 655,850,147.80/x
  3. Step 3: Cross multiply
    655,850,147.80x = 983,775,221.70 × 655,850,147.80
  4. Step 4: Simplify right side
    655,850,147.80x = 645,209,124,553,922,688
  5. Step 5: Solve for x
    x = 645,209,124,553,922,688/655,850,147.80
  6. Step 6: Final answer
    x = 983,775,221.70

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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.