Home / 319,560.21-440,914.46-195,349.83

Finding the Fourth Proportional to 319,560.21, 440,914.46 and 195,349.83

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Solution

The fourth proportional to 319,560.21, 440,914.46 and 195,349.83 is: 269,534.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,560.21 : 440,914.46 = 195,349.83 : x
  2. Step 2: Convert to fraction form
    319,560.21/440,914.46 = 195,349.83/x
  3. Step 3: Cross multiply
    319,560.21x = 440,914.46 × 195,349.83
  4. Step 4: Simplify right side
    319,560.21x = 86,132,563,828.79
  5. Step 5: Solve for x
    x = 86,132,563,828.79/319,560.21
  6. Step 6: Final answer
    x = 269,534.70

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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.