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Finding the Fourth Proportional to 435,695.54, 653,078.67 and 248,303.54

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Solution

The fourth proportional to 435,695.54, 653,078.67 and 248,303.54 is: 372,190.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,695.54 : 653,078.67 = 248,303.54 : x
  2. Step 2: Convert to fraction form
    435,695.54/653,078.67 = 248,303.54/x
  3. Step 3: Cross multiply
    435,695.54x = 653,078.67 × 248,303.54
  4. Step 4: Simplify right side
    435,695.54x = 162,161,745,659.49
  5. Step 5: Solve for x
    x = 162,161,745,659.49/435,695.54
  6. Step 6: Final answer
    x = 372,190.51

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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.