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Finding the Fourth Proportional to 614,177,553.60, 921,266,330.40 and 505,125,860.40

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Solution

The fourth proportional to 614,177,553.60, 921,266,330.40 and 505,125,860.40 is: 757,688,790.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,177,553.60 : 921,266,330.40 = 505,125,860.40 : x
  2. Step 2: Convert to fraction form
    614,177,553.60/921,266,330.40 = 505,125,860.40/x
  3. Step 3: Cross multiply
    614,177,553.60x = 921,266,330.40 × 505,125,860.40
  4. Step 4: Simplify right side
    614,177,553.60x = 465,355,447,800,850,624
  5. Step 5: Solve for x
    x = 465,355,447,800,850,624/614,177,553.60
  6. Step 6: Final answer
    x = 757,688,790.60

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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.