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Finding the Fourth Proportional to 443,848.11, 665,336.13 and 173,778.21

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Solution

The fourth proportional to 443,848.11, 665,336.13 and 173,778.21 is: 260,496.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,848.11 : 665,336.13 = 173,778.21 : x
  2. Step 2: Convert to fraction form
    443,848.11/665,336.13 = 173,778.21/x
  3. Step 3: Cross multiply
    443,848.11x = 665,336.13 × 173,778.21
  4. Step 4: Simplify right side
    443,848.11x = 115,620,921,068.06
  5. Step 5: Solve for x
    x = 115,620,921,068.06/443,848.11
  6. Step 6: Final answer
    x = 260,496.60

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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.