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Finding the Fourth Proportional to 371,393.67, 515,145.37 and 361,549.81

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Solution

The fourth proportional to 371,393.67, 515,145.37 and 361,549.81 is: 501,491.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,393.67 : 515,145.37 = 361,549.81 : x
  2. Step 2: Convert to fraction form
    371,393.67/515,145.37 = 361,549.81/x
  3. Step 3: Cross multiply
    371,393.67x = 515,145.37 × 361,549.81
  4. Step 4: Simplify right side
    371,393.67x = 186,250,711,063.84
  5. Step 5: Solve for x
    x = 186,250,711,063.84/371,393.67
  6. Step 6: Final answer
    x = 501,491.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.