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Finding the Fourth Proportional to 315,573.66, 435,532.80 and 179,581.14

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Solution

The fourth proportional to 315,573.66, 435,532.80 and 179,581.14 is: 247,845.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,573.66 : 435,532.80 = 179,581.14 : x
  2. Step 2: Convert to fraction form
    315,573.66/435,532.80 = 179,581.14/x
  3. Step 3: Cross multiply
    315,573.66x = 435,532.80 × 179,581.14
  4. Step 4: Simplify right side
    315,573.66x = 78,213,476,731.39
  5. Step 5: Solve for x
    x = 78,213,476,731.39/315,573.66
  6. Step 6: Final answer
    x = 247,845.39

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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.