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Finding the Fourth Proportional to 355,040.90, 532,561.35 and 168,416.90

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Solution

The fourth proportional to 355,040.90, 532,561.35 and 168,416.90 is: 252,625.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,040.90 : 532,561.35 = 168,416.90 : x
  2. Step 2: Convert to fraction form
    355,040.90/532,561.35 = 168,416.90/x
  3. Step 3: Cross multiply
    355,040.90x = 532,561.35 × 168,416.90
  4. Step 4: Simplify right side
    355,040.90x = 89,692,331,626.82
  5. Step 5: Solve for x
    x = 89,692,331,626.82/355,040.90
  6. Step 6: Final answer
    x = 252,625.35

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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.