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Finding the Fourth Proportional to 578,141.76, 866,619.66 and 223,016.16

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Solution

The fourth proportional to 578,141.76, 866,619.66 and 223,016.16 is: 334,295.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,141.76 : 866,619.66 = 223,016.16 : x
  2. Step 2: Convert to fraction form
    578,141.76/866,619.66 = 223,016.16/x
  3. Step 3: Cross multiply
    578,141.76x = 866,619.66 × 223,016.16
  4. Step 4: Simplify right side
    578,141.76x = 193,270,188,753.71
  5. Step 5: Solve for x
    x = 193,270,188,753.71/578,141.76
  6. Step 6: Final answer
    x = 334,295.50

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.