Home / 319,591.54-440,678.70-261,266.23

Finding the Fourth Proportional to 319,591.54, 440,678.70 and 261,266.23

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Solution

The fourth proportional to 319,591.54, 440,678.70 and 261,266.23 is: 360,255.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,591.54 : 440,678.70 = 261,266.23 : x
  2. Step 2: Convert to fraction form
    319,591.54/440,678.70 = 261,266.23/x
  3. Step 3: Cross multiply
    319,591.54x = 440,678.70 × 261,266.23
  4. Step 4: Simplify right side
    319,591.54x = 115,134,462,154.04
  5. Step 5: Solve for x
    x = 115,134,462,154.04/319,591.54
  6. Step 6: Final answer
    x = 360,255.04

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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.