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Finding the Fourth Proportional to 545,901,388.80, 818,852,083.20 and 545,901,388.80

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Solution

The fourth proportional to 545,901,388.80, 818,852,083.20 and 545,901,388.80 is: 818,852,083.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,901,388.80 : 818,852,083.20 = 545,901,388.80 : x
  2. Step 2: Convert to fraction form
    545,901,388.80/818,852,083.20 = 545,901,388.80/x
  3. Step 3: Cross multiply
    545,901,388.80x = 818,852,083.20 × 545,901,388.80
  4. Step 4: Simplify right side
    545,901,388.80x = 447,012,489,440,653,120
  5. Step 5: Solve for x
    x = 447,012,489,440,653,120/545,901,388.80
  6. Step 6: Final answer
    x = 818,852,083.20

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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.