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Finding the Fourth Proportional to 340,386.77, 469,796.73 and 197,146.77

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Solution

The fourth proportional to 340,386.77, 469,796.73 and 197,146.77 is: 272,099.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,386.77 : 469,796.73 = 197,146.77 : x
  2. Step 2: Convert to fraction form
    340,386.77/469,796.73 = 197,146.77/x
  3. Step 3: Cross multiply
    340,386.77x = 469,796.73 × 197,146.77
  4. Step 4: Simplify right side
    340,386.77x = 92,618,907,876.06
  5. Step 5: Solve for x
    x = 92,618,907,876.06/340,386.77
  6. Step 6: Final answer
    x = 272,099.03

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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.