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Finding the Fourth Proportional to 545,917,195.40, 818,875,793.10 and 545,917,195.40

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Solution

The fourth proportional to 545,917,195.40, 818,875,793.10 and 545,917,195.40 is: 818,875,793.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,917,195.40 : 818,875,793.10 = 545,917,195.40 : x
  2. Step 2: Convert to fraction form
    545,917,195.40/818,875,793.10 = 545,917,195.40/x
  3. Step 3: Cross multiply
    545,917,195.40x = 818,875,793.10 × 545,917,195.40
  4. Step 4: Simplify right side
    545,917,195.40x = 447,038,376,350,102,656
  5. Step 5: Solve for x
    x = 447,038,376,350,102,656/545,917,195.40
  6. Step 6: Final answer
    x = 818,875,793.10

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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.