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Finding the Fourth Proportional to 355,325.20, 532,210.20 and 308,669.20

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Solution

The fourth proportional to 355,325.20, 532,210.20 and 308,669.20 is: 462,328.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,325.20 : 532,210.20 = 308,669.20 : x
  2. Step 2: Convert to fraction form
    355,325.20/532,210.20 = 308,669.20/x
  3. Step 3: Cross multiply
    355,325.20x = 532,210.20 × 308,669.20
  4. Step 4: Simplify right side
    355,325.20x = 164,276,896,665.84
  5. Step 5: Solve for x
    x = 164,276,896,665.84/355,325.20
  6. Step 6: Final answer
    x = 462,328.30

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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.