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Finding the Fourth Proportional to 326,642.17, 450,724.39 and 190,644.93

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Solution

The fourth proportional to 326,642.17, 450,724.39 and 190,644.93 is: 263,065.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,642.17 : 450,724.39 = 190,644.93 : x
  2. Step 2: Convert to fraction form
    326,642.17/450,724.39 = 190,644.93/x
  3. Step 3: Cross multiply
    326,642.17x = 450,724.39 × 190,644.93
  4. Step 4: Simplify right side
    326,642.17x = 85,928,319,780.84
  5. Step 5: Solve for x
    x = 85,928,319,780.84/326,642.17
  6. Step 6: Final answer
    x = 263,065.60

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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.