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Finding the Fourth Proportional to 618,193,232.70, 927,289,849.05 and 613,888,560.60

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Solution

The fourth proportional to 618,193,232.70, 927,289,849.05 and 613,888,560.60 is: 920,832,840.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,193,232.70 : 927,289,849.05 = 613,888,560.60 : x
  2. Step 2: Convert to fraction form
    618,193,232.70/927,289,849.05 = 613,888,560.60/x
  3. Step 3: Cross multiply
    618,193,232.70x = 927,289,849.05 × 613,888,560.60
  4. Step 4: Simplify right side
    618,193,232.70x = 569,252,630,692,295,744
  5. Step 5: Solve for x
    x = 569,252,630,692,295,744/618,193,232.70
  6. Step 6: Final answer
    x = 920,832,840.90

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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.