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Finding the Fourth Proportional to 474,283.75, 711,109.60 and 261,152.03

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Solution

The fourth proportional to 474,283.75, 711,109.60 and 261,152.03 is: 391,554.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,283.75 : 711,109.60 = 261,152.03 : x
  2. Step 2: Convert to fraction form
    474,283.75/711,109.60 = 261,152.03/x
  3. Step 3: Cross multiply
    474,283.75x = 711,109.60 × 261,152.03
  4. Step 4: Simplify right side
    474,283.75x = 185,707,712,036.94
  5. Step 5: Solve for x
    x = 185,707,712,036.94/474,283.75
  6. Step 6: Final answer
    x = 391,554.03

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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.