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Finding the Fourth Proportional to 305,698,812.60, 458,548,218.90 and 305,698,812.60

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Solution

The fourth proportional to 305,698,812.60, 458,548,218.90 and 305,698,812.60 is: 458,548,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,698,812.60 : 458,548,218.90 = 305,698,812.60 : x
  2. Step 2: Convert to fraction form
    305,698,812.60/458,548,218.90 = 305,698,812.60/x
  3. Step 3: Cross multiply
    305,698,812.60x = 458,548,218.90 × 305,698,812.60
  4. Step 4: Simplify right side
    305,698,812.60x = 140,177,646,037,574,880
  5. Step 5: Solve for x
    x = 140,177,646,037,574,880/305,698,812.60
  6. Step 6: Final answer
    x = 458,548,218.90

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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.