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Finding the Fourth Proportional to 352,419.63, 486,343.76 and 191,276.61

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Solution

The fourth proportional to 352,419.63, 486,343.76 and 191,276.61 is: 263,964.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,419.63 : 486,343.76 = 191,276.61 : x
  2. Step 2: Convert to fraction form
    352,419.63/486,343.76 = 191,276.61/x
  3. Step 3: Cross multiply
    352,419.63x = 486,343.76 × 191,276.61
  4. Step 4: Simplify right side
    352,419.63x = 93,026,184,751.07
  5. Step 5: Solve for x
    x = 93,026,184,751.07/352,419.63
  6. Step 6: Final answer
    x = 263,964.25

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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.