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Finding the Fourth Proportional to 352,703.20, 528,277.20 and 306,047.20

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Solution

The fourth proportional to 352,703.20, 528,277.20 and 306,047.20 is: 458,396.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,703.20 : 528,277.20 = 306,047.20 : x
  2. Step 2: Convert to fraction form
    352,703.20/528,277.20 = 306,047.20/x
  3. Step 3: Cross multiply
    352,703.20x = 528,277.20 × 306,047.20
  4. Step 4: Simplify right side
    352,703.20x = 161,677,757,883.84
  5. Step 5: Solve for x
    x = 161,677,757,883.84/352,703.20
  6. Step 6: Final answer
    x = 458,396.06

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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.