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Finding the Fourth Proportional to 352,486.82, 486,440.64 and 191,341.87

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Solution

The fourth proportional to 352,486.82, 486,440.64 and 191,341.87 is: 264,056.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,486.82 : 486,440.64 = 191,341.87 : x
  2. Step 2: Convert to fraction form
    352,486.82/486,440.64 = 191,341.87/x
  3. Step 3: Cross multiply
    352,486.82x = 486,440.64 × 191,341.87
  4. Step 4: Simplify right side
    352,486.82x = 93,076,460,485.50
  5. Step 5: Solve for x
    x = 93,076,460,485.50/352,486.82
  6. Step 6: Final answer
    x = 264,056.57

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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.