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Finding the Fourth Proportional to 314,908.20, 472,059.90 and 104,437.80

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Solution

The fourth proportional to 314,908.20, 472,059.90 and 104,437.80 is: 156,556.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,908.20 : 472,059.90 = 104,437.80 : x
  2. Step 2: Convert to fraction form
    314,908.20/472,059.90 = 104,437.80/x
  3. Step 3: Cross multiply
    314,908.20x = 472,059.90 × 104,437.80
  4. Step 4: Simplify right side
    314,908.20x = 49,300,897,424.22
  5. Step 5: Solve for x
    x = 49,300,897,424.22/314,908.20
  6. Step 6: Final answer
    x = 156,556.41

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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.