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Finding the Fourth Proportional to 533,090.40, 798,323.40 and 354,631.20

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Solution

The fourth proportional to 533,090.40, 798,323.40 and 354,631.20 is: 531,073.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,090.40 : 798,323.40 = 354,631.20 : x
  2. Step 2: Convert to fraction form
    533,090.40/798,323.40 = 354,631.20/x
  3. Step 3: Cross multiply
    533,090.40x = 798,323.40 × 354,631.20
  4. Step 4: Simplify right side
    533,090.40x = 283,110,385,330.08
  5. Step 5: Solve for x
    x = 283,110,385,330.08/533,090.40
  6. Step 6: Final answer
    x = 531,073.88

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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.