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Finding the Fourth Proportional to 413,753,413,381.40, 620,630,120,072.12 and 413,753,413,381.40

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Solution

The fourth proportional to 413,753,413,381.40, 620,630,120,072.12 and 413,753,413,381.40 is: 620,630,120,072.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,753,413,381.40 : 620,630,120,072.12 = 413,753,413,381.40 : x
  2. Step 2: Convert to fraction form
    413,753,413,381.40/620,630,120,072.12 = 413,753,413,381.40/x
  3. Step 3: Cross multiply
    413,753,413,381.40x = 620,630,120,072.12 × 413,753,413,381.40
  4. Step 4: Simplify right side
    413,753,413,381.40x = 256,787,830,627,147,802,738,688
  5. Step 5: Solve for x
    x = 256,787,830,627,147,802,738,688/413,753,413,381.40
  6. Step 6: Final answer
    x = 620,630,120,072.12

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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.