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Finding the Fourth Proportional to 260,407.68, 359,372.81 and 152,976.77

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Solution

The fourth proportional to 260,407.68, 359,372.81 and 152,976.77 is: 211,113.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,407.68 : 359,372.81 = 152,976.77 : x
  2. Step 2: Convert to fraction form
    260,407.68/359,372.81 = 152,976.77/x
  3. Step 3: Cross multiply
    260,407.68x = 359,372.81 × 152,976.77
  4. Step 4: Simplify right side
    260,407.68x = 54,975,691,632.85
  5. Step 5: Solve for x
    x = 54,975,691,632.85/260,407.68
  6. Step 6: Final answer
    x = 211,113.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.