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Finding the Fourth Proportional to 570,928.07, 856,583.28 and 186,694.64

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Solution

The fourth proportional to 570,928.07, 856,583.28 and 186,694.64 is: 280,104.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,928.07 : 856,583.28 = 186,694.64 : x
  2. Step 2: Convert to fraction form
    570,928.07/856,583.28 = 186,694.64/x
  3. Step 3: Cross multiply
    570,928.07x = 856,583.28 × 186,694.64
  4. Step 4: Simplify right side
    570,928.07x = 159,919,502,806.70
  5. Step 5: Solve for x
    x = 159,919,502,806.70/570,928.07
  6. Step 6: Final answer
    x = 280,104.47

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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.