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Finding the Fourth Proportional to 400,318.95, 600,384.08 and 147,462.11

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Solution

The fourth proportional to 400,318.95, 600,384.08 and 147,462.11 is: 221,158.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,318.95 : 600,384.08 = 147,462.11 : x
  2. Step 2: Convert to fraction form
    400,318.95/600,384.08 = 147,462.11/x
  3. Step 3: Cross multiply
    400,318.95x = 600,384.08 × 147,462.11
  4. Step 4: Simplify right side
    400,318.95x = 88,533,903,247.21
  5. Step 5: Solve for x
    x = 88,533,903,247.21/400,318.95
  6. Step 6: Final answer
    x = 221,158.41

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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.