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Finding the Fourth Proportional to 488,448,584.80, 732,672,877.20 and 485,047,362.40

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Solution

The fourth proportional to 488,448,584.80, 732,672,877.20 and 485,047,362.40 is: 727,571,043.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,448,584.80 : 732,672,877.20 = 485,047,362.40 : x
  2. Step 2: Convert to fraction form
    488,448,584.80/732,672,877.20 = 485,047,362.40/x
  3. Step 3: Cross multiply
    488,448,584.80x = 732,672,877.20 × 485,047,362.40
  4. Step 4: Simplify right side
    488,448,584.80x = 355,381,046,587,879,104
  5. Step 5: Solve for x
    x = 355,381,046,587,879,104/488,448,584.80
  6. Step 6: Final answer
    x = 727,571,043.60

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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.