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Finding the Fourth Proportional to 604,453.40, 907,336.20 and 471,921.20

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Solution

The fourth proportional to 604,453.40, 907,336.20 and 471,921.20 is: 708,394.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,453.40 : 907,336.20 = 471,921.20 : x
  2. Step 2: Convert to fraction form
    604,453.40/907,336.20 = 471,921.20/x
  3. Step 3: Cross multiply
    604,453.40x = 907,336.20 × 471,921.20
  4. Step 4: Simplify right side
    604,453.40x = 428,191,188,307.44
  5. Step 5: Solve for x
    x = 428,191,188,307.44/604,453.40
  6. Step 6: Final answer
    x = 708,394.04

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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.