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Finding the Fourth Proportional to 366,383.07, 550,416.60 and 260,031.08

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Solution

The fourth proportional to 366,383.07, 550,416.60 and 260,031.08 is: 390,644.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,383.07 : 550,416.60 = 260,031.08 : x
  2. Step 2: Convert to fraction form
    366,383.07/550,416.60 = 260,031.08/x
  3. Step 3: Cross multiply
    366,383.07x = 550,416.60 × 260,031.08
  4. Step 4: Simplify right side
    366,383.07x = 143,125,424,323.97
  5. Step 5: Solve for x
    x = 143,125,424,323.97/366,383.07
  6. Step 6: Final answer
    x = 390,644.21

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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.