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Finding the Fourth Proportional to 260,863.96, 390,733.55 and 176,158.34

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Solution

The fourth proportional to 260,863.96, 390,733.55 and 176,158.34 is: 263,857.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,863.96 : 390,733.55 = 176,158.34 : x
  2. Step 2: Convert to fraction form
    260,863.96/390,733.55 = 176,158.34/x
  3. Step 3: Cross multiply
    260,863.96x = 390,733.55 × 176,158.34
  4. Step 4: Simplify right side
    260,863.96x = 68,830,972,841.69
  5. Step 5: Solve for x
    x = 68,830,972,841.69/260,863.96
  6. Step 6: Final answer
    x = 263,857.73

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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.