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Finding the Fourth Proportional to 521,520,772,564.60, 782,281,158,846.90 and 521,520,772,564.60

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Solution

The fourth proportional to 521,520,772,564.60, 782,281,158,846.90 and 521,520,772,564.60 is: 782,281,158,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,772,564.60 : 782,281,158,846.90 = 521,520,772,564.60 : x
  2. Step 2: Convert to fraction form
    521,520,772,564.60/782,281,158,846.90 = 521,520,772,564.60/x
  3. Step 3: Cross multiply
    521,520,772,564.60x = 782,281,158,846.90 × 521,520,772,564.60
  4. Step 4: Simplify right side
    521,520,772,564.60x = 407,975,874,324,565,847,965,696
  5. Step 5: Solve for x
    x = 407,975,874,324,565,847,965,696/521,520,772,564.60
  6. Step 6: Final answer
    x = 782,281,158,846.90

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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.