Home / 386,724.39-533,675.61-214,643.84

Finding the Fourth Proportional to 386,724.39, 533,675.61 and 214,643.84

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Solution

The fourth proportional to 386,724.39, 533,675.61 and 214,643.84 is: 296,206.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,724.39 : 533,675.61 = 214,643.84 : x
  2. Step 2: Convert to fraction form
    386,724.39/533,675.61 = 214,643.84/x
  3. Step 3: Cross multiply
    386,724.39x = 533,675.61 × 214,643.84
  4. Step 4: Simplify right side
    386,724.39x = 114,550,183,463.41
  5. Step 5: Solve for x
    x = 114,550,183,463.41/386,724.39
  6. Step 6: Final answer
    x = 296,206.25

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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.