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Finding the Fourth Proportional to 401,054.20, 601,581.30 and 322,322.20

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Solution

The fourth proportional to 401,054.20, 601,581.30 and 322,322.20 is: 483,483.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,054.20 : 601,581.30 = 322,322.20 : x
  2. Step 2: Convert to fraction form
    401,054.20/601,581.30 = 322,322.20/x
  3. Step 3: Cross multiply
    401,054.20x = 601,581.30 × 322,322.20
  4. Step 4: Simplify right side
    401,054.20x = 193,903,008,094.86
  5. Step 5: Solve for x
    x = 193,903,008,094.86/401,054.20
  6. Step 6: Final answer
    x = 483,483.30

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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.