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Finding the Fourth Proportional to 371,053.78, 555,838.71 and 171,100.42

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Solution

The fourth proportional to 371,053.78, 555,838.71 and 171,100.42 is: 256,308.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,053.78 : 555,838.71 = 171,100.42 : x
  2. Step 2: Convert to fraction form
    371,053.78/555,838.71 = 171,100.42/x
  3. Step 3: Cross multiply
    371,053.78x = 555,838.71 × 171,100.42
  4. Step 4: Simplify right side
    371,053.78x = 95,104,236,733.26
  5. Step 5: Solve for x
    x = 95,104,236,733.26/371,053.78
  6. Step 6: Final answer
    x = 256,308.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.