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Finding the Fourth Proportional to 545,973,405.80, 818,960,108.70 and 545,973,405.80

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Solution

The fourth proportional to 545,973,405.80, 818,960,108.70 and 545,973,405.80 is: 818,960,108.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,973,405.80 : 818,960,108.70 = 545,973,405.80 : x
  2. Step 2: Convert to fraction form
    545,973,405.80/818,960,108.70 = 545,973,405.80/x
  3. Step 3: Cross multiply
    545,973,405.80x = 818,960,108.70 × 545,973,405.80
  4. Step 4: Simplify right side
    545,973,405.80x = 447,130,439,761,277,184
  5. Step 5: Solve for x
    x = 447,130,439,761,277,184/545,973,405.80
  6. Step 6: Final answer
    x = 818,960,108.70

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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.