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Finding the Fourth Proportional to 353,437.06, 487,737.78 and 192,288.43

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Solution

The fourth proportional to 353,437.06, 487,737.78 and 192,288.43 is: 265,355.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,437.06 : 487,737.78 = 192,288.43 : x
  2. Step 2: Convert to fraction form
    353,437.06/487,737.78 = 192,288.43/x
  3. Step 3: Cross multiply
    353,437.06x = 487,737.78 × 192,288.43
  4. Step 4: Simplify right side
    353,437.06x = 93,786,331,967.89
  5. Step 5: Solve for x
    x = 93,786,331,967.89/353,437.06
  6. Step 6: Final answer
    x = 265,355.12

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1.5x scale

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.