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Finding the Fourth Proportional to 354,736.40, 532,104.60 and 105,418.40

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Solution

The fourth proportional to 354,736.40, 532,104.60 and 105,418.40 is: 158,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,736.40 : 532,104.60 = 105,418.40 : x
  2. Step 2: Convert to fraction form
    354,736.40/532,104.60 = 105,418.40/x
  3. Step 3: Cross multiply
    354,736.40x = 532,104.60 × 105,418.40
  4. Step 4: Simplify right side
    354,736.40x = 56,093,615,564.64
  5. Step 5: Solve for x
    x = 56,093,615,564.64/354,736.40
  6. Step 6: Final answer
    x = 158,127.60

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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.