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Finding the Fourth Proportional to 613,278.40, 919,917.60 and 453,846.10

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Solution

The fourth proportional to 613,278.40, 919,917.60 and 453,846.10 is: 680,769.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,278.40 : 919,917.60 = 453,846.10 : x
  2. Step 2: Convert to fraction form
    613,278.40/919,917.60 = 453,846.10/x
  3. Step 3: Cross multiply
    613,278.40x = 919,917.60 × 453,846.10
  4. Step 4: Simplify right side
    613,278.40x = 417,501,015,081.36
  5. Step 5: Solve for x
    x = 417,501,015,081.36/613,278.40
  6. Step 6: Final answer
    x = 680,769.15

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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.