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Finding the Fourth Proportional to 515,297.34, 772,583.83 and 226,972.15

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Solution

The fourth proportional to 515,297.34, 772,583.83 and 226,972.15 is: 340,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,297.34 : 772,583.83 = 226,972.15 : x
  2. Step 2: Convert to fraction form
    515,297.34/772,583.83 = 226,972.15/x
  3. Step 3: Cross multiply
    515,297.34x = 772,583.83 × 226,972.15
  4. Step 4: Simplify right side
    515,297.34x = 175,355,012,950.33
  5. Step 5: Solve for x
    x = 175,355,012,950.33/515,297.34
  6. Step 6: Final answer
    x = 340,298.70

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.