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Finding the Fourth Proportional to 352,701.20, 528,274.20 and 306,045.20

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Solution

The fourth proportional to 352,701.20, 528,274.20 and 306,045.20 is: 458,393.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,701.20 : 528,274.20 = 306,045.20 : x
  2. Step 2: Convert to fraction form
    352,701.20/528,274.20 = 306,045.20/x
  3. Step 3: Cross multiply
    352,701.20x = 528,274.20 × 306,045.20
  4. Step 4: Simplify right side
    352,701.20x = 161,675,783,193.84
  5. Step 5: Solve for x
    x = 161,675,783,193.84/352,701.20
  6. Step 6: Final answer
    x = 458,393.06

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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.