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Finding the Fourth Proportional to 288,962.70, 398,594.16 and 190,846.54

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Solution

The fourth proportional to 288,962.70, 398,594.16 and 190,846.54 is: 263,253.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,962.70 : 398,594.16 = 190,846.54 : x
  2. Step 2: Convert to fraction form
    288,962.70/398,594.16 = 190,846.54/x
  3. Step 3: Cross multiply
    288,962.70x = 398,594.16 × 190,846.54
  4. Step 4: Simplify right side
    288,962.70x = 76,070,316,300.21
  5. Step 5: Solve for x
    x = 76,070,316,300.21/288,962.70
  6. Step 6: Final answer
    x = 263,253.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.