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Finding the Fourth Proportional to 328,225.30, 492,040.95 and 228,433.30

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Solution

The fourth proportional to 328,225.30, 492,040.95 and 228,433.30 is: 342,443.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,225.30 : 492,040.95 = 228,433.30 : x
  2. Step 2: Convert to fraction form
    328,225.30/492,040.95 = 228,433.30/x
  3. Step 3: Cross multiply
    328,225.30x = 492,040.95 × 228,433.30
  4. Step 4: Simplify right side
    328,225.30x = 112,398,537,943.64
  5. Step 5: Solve for x
    x = 112,398,537,943.64/328,225.30
  6. Step 6: Final answer
    x = 342,443.25

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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.