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Finding the Fourth Proportional to 366,923.65, 550,385.48 and 260,635.45

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Solution

The fourth proportional to 366,923.65, 550,385.48 and 260,635.45 is: 390,953.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,923.65 : 550,385.48 = 260,635.45 : x
  2. Step 2: Convert to fraction form
    366,923.65/550,385.48 = 260,635.45/x
  3. Step 3: Cross multiply
    366,923.65x = 550,385.48 × 260,635.45
  4. Step 4: Simplify right side
    366,923.65x = 143,449,967,253.27
  5. Step 5: Solve for x
    x = 143,449,967,253.27/366,923.65
  6. Step 6: Final answer
    x = 390,953.18

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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.