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Finding the Fourth Proportional to 980,104,893.20, 1,373,167,217.20 and 980,104,893.20

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Solution

The fourth proportional to 980,104,893.20, 1,373,167,217.20 and 980,104,893.20 is: 1,373,167,217.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,104,893.20 : 1,373,167,217.20 = 980,104,893.20 : x
  2. Step 2: Convert to fraction form
    980,104,893.20/1,373,167,217.20 = 980,104,893.20/x
  3. Step 3: Cross multiply
    980,104,893.20x = 1,373,167,217.20 × 980,104,893.20
  4. Step 4: Simplify right side
    980,104,893.20x = 1,345,847,908,759,547,392
  5. Step 5: Solve for x
    x = 1,345,847,908,759,547,392/980,104,893.20
  6. Step 6: Final answer
    x = 1,373,167,217.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.