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Finding the Fourth Proportional to 998,465,781.60, 1,495,011,286.80 and 998,465,781.60

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Solution

The fourth proportional to 998,465,781.60, 1,495,011,286.80 and 998,465,781.60 is: 1,495,011,286.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,465,781.60 : 1,495,011,286.80 = 998,465,781.60 : x
  2. Step 2: Convert to fraction form
    998,465,781.60/1,495,011,286.80 = 998,465,781.60/x
  3. Step 3: Cross multiply
    998,465,781.60x = 1,495,011,286.80 × 998,465,781.60
  4. Step 4: Simplify right side
    998,465,781.60x = 1,492,717,612,975,583,744
  5. Step 5: Solve for x
    x = 1,492,717,612,975,583,744/998,465,781.60
  6. Step 6: Final answer
    x = 1,495,011,286.80

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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.