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Finding the Fourth Proportional to 253,436.85, 349,888.41 and 189,259.94

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Solution

The fourth proportional to 253,436.85, 349,888.41 and 189,259.94 is: 261,287.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,436.85 : 349,888.41 = 189,259.94 : x
  2. Step 2: Convert to fraction form
    253,436.85/349,888.41 = 189,259.94/x
  3. Step 3: Cross multiply
    253,436.85x = 349,888.41 × 189,259.94
  4. Step 4: Simplify right side
    253,436.85x = 66,219,860,358.02
  5. Step 5: Solve for x
    x = 66,219,860,358.02/253,436.85
  6. Step 6: Final answer
    x = 261,287.42

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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.