Home / 319,720.17-441,213.88-176,480.25

Finding the Fourth Proportional to 319,720.17, 441,213.88 and 176,480.25

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Solution

The fourth proportional to 319,720.17, 441,213.88 and 176,480.25 is: 243,542.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,720.17 : 441,213.88 = 176,480.25 : x
  2. Step 2: Convert to fraction form
    319,720.17/441,213.88 = 176,480.25/x
  3. Step 3: Cross multiply
    319,720.17x = 441,213.88 × 176,480.25
  4. Step 4: Simplify right side
    319,720.17x = 77,865,535,845.87
  5. Step 5: Solve for x
    x = 77,865,535,845.87/319,720.17
  6. Step 6: Final answer
    x = 243,542.77

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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.