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Finding the Fourth Proportional to 560,438.75, 840,665.46 and 186,461.75

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Solution

The fourth proportional to 560,438.75, 840,665.46 and 186,461.75 is: 279,695.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,438.75 : 840,665.46 = 186,461.75 : x
  2. Step 2: Convert to fraction form
    560,438.75/840,665.46 = 186,461.75/x
  3. Step 3: Cross multiply
    560,438.75x = 840,665.46 × 186,461.75
  4. Step 4: Simplify right side
    560,438.75x = 156,751,952,836.16
  5. Step 5: Solve for x
    x = 156,751,952,836.16/560,438.75
  6. Step 6: Final answer
    x = 279,695.07

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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.