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Finding the Fourth Proportional to 340,545.82, 469,953.29 and 197,388.90

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Solution

The fourth proportional to 340,545.82, 469,953.29 and 197,388.90 is: 272,396.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,545.82 : 469,953.29 = 197,388.90 : x
  2. Step 2: Convert to fraction form
    340,545.82/469,953.29 = 197,388.90/x
  3. Step 3: Cross multiply
    340,545.82x = 469,953.29 × 197,388.90
  4. Step 4: Simplify right side
    340,545.82x = 92,763,563,457.95
  5. Step 5: Solve for x
    x = 92,763,563,457.95/340,545.82
  6. Step 6: Final answer
    x = 272,396.72

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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.