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Finding the Fourth Proportional to 366,911.55, 550,367.33 and 260,623.35

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Solution

The fourth proportional to 366,911.55, 550,367.33 and 260,623.35 is: 390,935.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,911.55 : 550,367.33 = 260,623.35 : x
  2. Step 2: Convert to fraction form
    366,911.55/550,367.33 = 260,623.35/x
  3. Step 3: Cross multiply
    366,911.55x = 550,367.33 × 260,623.35
  4. Step 4: Simplify right side
    366,911.55x = 143,438,575,972.04
  5. Step 5: Solve for x
    x = 143,438,575,972.04/366,911.55
  6. Step 6: Final answer
    x = 390,935.03

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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.