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Finding the Fourth Proportional to 613,477.60, 920,216.40 and 164,267.80

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Solution

The fourth proportional to 613,477.60, 920,216.40 and 164,267.80 is: 246,401.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,477.60 : 920,216.40 = 164,267.80 : x
  2. Step 2: Convert to fraction form
    613,477.60/920,216.40 = 164,267.80/x
  3. Step 3: Cross multiply
    613,477.60x = 920,216.40 × 164,267.80
  4. Step 4: Simplify right side
    613,477.60x = 151,161,923,551.92
  5. Step 5: Solve for x
    x = 151,161,923,551.92/613,477.60
  6. Step 6: Final answer
    x = 246,401.70

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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.