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Finding the Fourth Proportional to 488,448,544.80, 732,672,817.20 and 485,047,322.40

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Solution

The fourth proportional to 488,448,544.80, 732,672,817.20 and 485,047,322.40 is: 727,570,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,448,544.80 : 732,672,817.20 = 485,047,322.40 : x
  2. Step 2: Convert to fraction form
    488,448,544.80/732,672,817.20 = 485,047,322.40/x
  3. Step 3: Cross multiply
    488,448,544.80x = 732,672,817.20 × 485,047,322.40
  4. Step 4: Simplify right side
    488,448,544.80x = 355,380,988,178,124,672
  5. Step 5: Solve for x
    x = 355,380,988,178,124,672/488,448,544.80
  6. Step 6: Final answer
    x = 727,570,983.60

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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.