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Finding the Fourth Proportional to 401,068.80, 601,603.20 and 322,336.80

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Solution

The fourth proportional to 401,068.80, 601,603.20 and 322,336.80 is: 483,505.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,068.80 : 601,603.20 = 322,336.80 : x
  2. Step 2: Convert to fraction form
    401,068.80/601,603.20 = 322,336.80/x
  3. Step 3: Cross multiply
    401,068.80x = 601,603.20 × 322,336.80
  4. Step 4: Simplify right side
    401,068.80x = 193,918,850,357.76
  5. Step 5: Solve for x
    x = 193,918,850,357.76/401,068.80
  6. Step 6: Final answer
    x = 483,505.20

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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.