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Finding the Fourth Proportional to 265,776.10, 398,220.36 and 186,748.86

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Solution

The fourth proportional to 265,776.10, 398,220.36 and 186,748.86 is: 279,811.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,776.10 : 398,220.36 = 186,748.86 : x
  2. Step 2: Convert to fraction form
    265,776.10/398,220.36 = 186,748.86/x
  3. Step 3: Cross multiply
    265,776.10x = 398,220.36 × 186,748.86
  4. Step 4: Simplify right side
    265,776.10x = 74,367,195,333.94
  5. Step 5: Solve for x
    x = 74,367,195,333.94/265,776.10
  6. Step 6: Final answer
    x = 279,811.45

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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.