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Finding the Fourth Proportional to 366,917.65, 550,376.48 and 260,629.45

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Solution

The fourth proportional to 366,917.65, 550,376.48 and 260,629.45 is: 390,944.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,917.65 : 550,376.48 = 260,629.45 : x
  2. Step 2: Convert to fraction form
    366,917.65/550,376.48 = 260,629.45/x
  3. Step 3: Cross multiply
    366,917.65x = 550,376.48 × 260,629.45
  4. Step 4: Simplify right side
    366,917.65x = 143,444,319,275.34
  5. Step 5: Solve for x
    x = 143,444,319,275.34/366,917.65
  6. Step 6: Final answer
    x = 390,944.18

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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.