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Finding the Fourth Proportional to 363,963,456,039.90, 545,210,520,021.45 and 363,963,456,039.90

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Solution

The fourth proportional to 363,963,456,039.90, 545,210,520,021.45 and 363,963,456,039.90 is: 545,210,520,021.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,963,456,039.90 : 545,210,520,021.45 = 363,963,456,039.90 : x
  2. Step 2: Convert to fraction form
    363,963,456,039.90/545,210,520,021.45 = 363,963,456,039.90/x
  3. Step 3: Cross multiply
    363,963,456,039.90x = 545,210,520,021.45 × 363,963,456,039.90
  4. Step 4: Simplify right side
    363,963,456,039.90x = 198,436,705,136,318,055,710,720
  5. Step 5: Solve for x
    x = 198,436,705,136,318,055,710,720/363,963,456,039.90
  6. Step 6: Final answer
    x = 545,210,520,021.45

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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.