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Finding the Fourth Proportional to 568,060.40, 852,090.60 and 287,541.20

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Solution

The fourth proportional to 568,060.40, 852,090.60 and 287,541.20 is: 431,311.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,060.40 : 852,090.60 = 287,541.20 : x
  2. Step 2: Convert to fraction form
    568,060.40/852,090.60 = 287,541.20/x
  3. Step 3: Cross multiply
    568,060.40x = 852,090.60 × 287,541.20
  4. Step 4: Simplify right side
    568,060.40x = 245,011,153,632.72
  5. Step 5: Solve for x
    x = 245,011,153,632.72/568,060.40
  6. Step 6: Final answer
    x = 431,311.80

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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.