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Finding the Fourth Proportional to 483,610.40, 725,415.60 and 478,944.80

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Solution

The fourth proportional to 483,610.40, 725,415.60 and 478,944.80 is: 718,417.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,610.40 : 725,415.60 = 478,944.80 : x
  2. Step 2: Convert to fraction form
    483,610.40/725,415.60 = 478,944.80/x
  3. Step 3: Cross multiply
    483,610.40x = 725,415.60 × 478,944.80
  4. Step 4: Simplify right side
    483,610.40x = 347,434,029,458.88
  5. Step 5: Solve for x
    x = 347,434,029,458.88/483,610.40
  6. Step 6: Final answer
    x = 718,417.20

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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.