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Finding the Fourth Proportional to 400,322.37, 600,484.61 and 147,493.32

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Solution

The fourth proportional to 400,322.37, 600,484.61 and 147,493.32 is: 221,240.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,322.37 : 600,484.61 = 147,493.32 : x
  2. Step 2: Convert to fraction form
    400,322.37/600,484.61 = 147,493.32/x
  3. Step 3: Cross multiply
    400,322.37x = 600,484.61 × 147,493.32
  4. Step 4: Simplify right side
    400,322.37x = 88,567,468,737.81
  5. Step 5: Solve for x
    x = 88,567,468,737.81/400,322.37
  6. Step 6: Final answer
    x = 221,240.37

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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.