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Finding the Fourth Proportional to 340,391.22, 469,802.87 and 197,151.22

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Solution

The fourth proportional to 340,391.22, 469,802.87 and 197,151.22 is: 272,105.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,391.22 : 469,802.87 = 197,151.22 : x
  2. Step 2: Convert to fraction form
    340,391.22/469,802.87 = 197,151.22/x
  3. Step 3: Cross multiply
    340,391.22x = 469,802.87 × 197,151.22
  4. Step 4: Simplify right side
    340,391.22x = 92,622,208,980.00
  5. Step 5: Solve for x
    x = 92,622,208,980.00/340,391.22
  6. Step 6: Final answer
    x = 272,105.16

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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.