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Finding the Fourth Proportional to 353,083.80, 528,848.10 and 247,330.20

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Solution

The fourth proportional to 353,083.80, 528,848.10 and 247,330.20 is: 370,450.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,083.80 : 528,848.10 = 247,330.20 : x
  2. Step 2: Convert to fraction form
    353,083.80/528,848.10 = 247,330.20/x
  3. Step 3: Cross multiply
    353,083.80x = 528,848.10 × 247,330.20
  4. Step 4: Simplify right side
    353,083.80x = 130,800,106,342.62
  5. Step 5: Solve for x
    x = 130,800,106,342.62/353,083.80
  6. Step 6: Final answer
    x = 370,450.60

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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.