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Finding the Fourth Proportional to 353,684.50, 487,003.75 and 266,596.12

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Solution

The fourth proportional to 353,684.50, 487,003.75 and 266,596.12 is: 367,087.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,684.50 : 487,003.75 = 266,596.12 : x
  2. Step 2: Convert to fraction form
    353,684.50/487,003.75 = 266,596.12/x
  3. Step 3: Cross multiply
    353,684.50x = 487,003.75 × 266,596.12
  4. Step 4: Simplify right side
    353,684.50x = 129,833,310,175.45
  5. Step 5: Solve for x
    x = 129,833,310,175.45/353,684.50
  6. Step 6: Final answer
    x = 367,087.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.