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Finding the Fourth Proportional to 353,127.68, 487,325.84 and 191,993.56

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Solution

The fourth proportional to 353,127.68, 487,325.84 and 191,993.56 is: 264,956.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,127.68 : 487,325.84 = 191,993.56 : x
  2. Step 2: Convert to fraction form
    353,127.68/487,325.84 = 191,993.56/x
  3. Step 3: Cross multiply
    353,127.68x = 487,325.84 × 191,993.56
  4. Step 4: Simplify right side
    353,127.68x = 93,563,422,901.59
  5. Step 5: Solve for x
    x = 93,563,422,901.59/353,127.68
  6. Step 6: Final answer
    x = 264,956.35

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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.