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Finding the Fourth Proportional to 351,483.22, 485,047.11 and 190,338.45

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Solution

The fourth proportional to 351,483.22, 485,047.11 and 190,338.45 is: 262,667.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,483.22 : 485,047.11 = 190,338.45 : x
  2. Step 2: Convert to fraction form
    351,483.22/485,047.11 = 190,338.45/x
  3. Step 3: Cross multiply
    351,483.22x = 485,047.11 × 190,338.45
  4. Step 4: Simplify right side
    351,483.22x = 92,323,115,094.38
  5. Step 5: Solve for x
    x = 92,323,115,094.38/351,483.22
  6. Step 6: Final answer
    x = 262,667.21

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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.