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Finding the Fourth Proportional to 533,820.88, 736,640.40 and 304,346.08

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Solution

The fourth proportional to 533,820.88, 736,640.40 and 304,346.08 is: 419,979.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,820.88 : 736,640.40 = 304,346.08 : x
  2. Step 2: Convert to fraction form
    533,820.88/736,640.40 = 304,346.08/x
  3. Step 3: Cross multiply
    533,820.88x = 736,640.40 × 304,346.08
  4. Step 4: Simplify right side
    533,820.88x = 224,193,618,109.63
  5. Step 5: Solve for x
    x = 224,193,618,109.63/533,820.88
  6. Step 6: Final answer
    x = 419,979.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.