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Finding the Fourth Proportional to 472,925.20, 709,560.60 and 192,643.60

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Solution

The fourth proportional to 472,925.20, 709,560.60 and 192,643.60 is: 289,035.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,925.20 : 709,560.60 = 192,643.60 : x
  2. Step 2: Convert to fraction form
    472,925.20/709,560.60 = 192,643.60/x
  3. Step 3: Cross multiply
    472,925.20x = 709,560.60 × 192,643.60
  4. Step 4: Simplify right side
    472,925.20x = 136,692,308,402.16
  5. Step 5: Solve for x
    x = 136,692,308,402.16/472,925.20
  6. Step 6: Final answer
    x = 289,035.79

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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.