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Finding the Fourth Proportional to 300,945,207.60, 451,417,811.40 and 300,945,207.60

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Solution

The fourth proportional to 300,945,207.60, 451,417,811.40 and 300,945,207.60 is: 451,417,811.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,945,207.60 : 451,417,811.40 = 300,945,207.60 : x
  2. Step 2: Convert to fraction form
    300,945,207.60/451,417,811.40 = 300,945,207.60/x
  3. Step 3: Cross multiply
    300,945,207.60x = 451,417,811.40 × 300,945,207.60
  4. Step 4: Simplify right side
    300,945,207.60x = 135,852,026,966,110,656
  5. Step 5: Solve for x
    x = 135,852,026,966,110,656/300,945,207.60
  6. Step 6: Final answer
    x = 451,417,811.40

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1.5x scale

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.