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Finding the Fourth Proportional to 353,127.94, 487,326.17 and 191,993.83

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Solution

The fourth proportional to 353,127.94, 487,326.17 and 191,993.83 is: 264,956.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,127.94 : 487,326.17 = 191,993.83 : x
  2. Step 2: Convert to fraction form
    353,127.94/487,326.17 = 191,993.83/x
  3. Step 3: Cross multiply
    353,127.94x = 487,326.17 × 191,993.83
  4. Step 4: Simplify right side
    353,127.94x = 93,563,617,837.53
  5. Step 5: Solve for x
    x = 93,563,617,837.53/353,127.94
  6. Step 6: Final answer
    x = 264,956.71

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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.