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Finding the Fourth Proportional to 413,753,408,905.78, 620,630,113,358.70 and 413,753,408,905.78

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Solution

The fourth proportional to 413,753,408,905.78, 620,630,113,358.70 and 413,753,408,905.78 is: 620,630,113,358.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,753,408,905.78 : 620,630,113,358.70 = 413,753,408,905.78 : x
  2. Step 2: Convert to fraction form
    413,753,408,905.78/620,630,113,358.70 = 413,753,408,905.78/x
  3. Step 3: Cross multiply
    413,753,408,905.78x = 620,630,113,358.70 × 413,753,408,905.78
  4. Step 4: Simplify right side
    413,753,408,905.78x = 256,787,825,071,742,796,169,216
  5. Step 5: Solve for x
    x = 256,787,825,071,742,796,169,216/413,753,408,905.78
  6. Step 6: Final answer
    x = 620,630,113,358.70

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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.