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Finding the Fourth Proportional to 580,650,015.60, 870,975,023.40 and 396,713,401.20

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Solution

The fourth proportional to 580,650,015.60, 870,975,023.40 and 396,713,401.20 is: 595,070,101.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,650,015.60 : 870,975,023.40 = 396,713,401.20 : x
  2. Step 2: Convert to fraction form
    580,650,015.60/870,975,023.40 = 396,713,401.20/x
  3. Step 3: Cross multiply
    580,650,015.60x = 870,975,023.40 × 396,713,401.20
  4. Step 4: Simplify right side
    580,650,015.60x = 345,527,463,893,263,552
  5. Step 5: Solve for x
    x = 345,527,463,893,263,552/580,650,015.60
  6. Step 6: Final answer
    x = 595,070,101.80

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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.