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Finding the Fourth Proportional to 591,665.80, 886,980.30 and 355,102.60

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Solution

The fourth proportional to 591,665.80, 886,980.30 and 355,102.60 is: 532,342.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,665.80 : 886,980.30 = 355,102.60 : x
  2. Step 2: Convert to fraction form
    591,665.80/886,980.30 = 355,102.60/x
  3. Step 3: Cross multiply
    591,665.80x = 886,980.30 × 355,102.60
  4. Step 4: Simplify right side
    591,665.80x = 314,969,010,678.78
  5. Step 5: Solve for x
    x = 314,969,010,678.78/591,665.80
  6. Step 6: Final answer
    x = 532,342.77

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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.