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Finding the Fourth Proportional to 429,892.37, 644,838.53 and 192,958.25

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Solution

The fourth proportional to 429,892.37, 644,838.53 and 192,958.25 is: 289,437.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,892.37 : 644,838.53 = 192,958.25 : x
  2. Step 2: Convert to fraction form
    429,892.37/644,838.53 = 192,958.25/x
  3. Step 3: Cross multiply
    429,892.37x = 644,838.53 × 192,958.25
  4. Step 4: Simplify right side
    429,892.37x = 124,426,914,281.37
  5. Step 5: Solve for x
    x = 124,426,914,281.37/429,892.37
  6. Step 6: Final answer
    x = 289,437.37

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1.5x scale

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.