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Finding the Fourth Proportional to 572,810.40, 790,300.44 and 331,004.88

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Solution

The fourth proportional to 572,810.40, 790,300.44 and 331,004.88 is: 456,683.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,810.40 : 790,300.44 = 331,004.88 : x
  2. Step 2: Convert to fraction form
    572,810.40/790,300.44 = 331,004.88/x
  3. Step 3: Cross multiply
    572,810.40x = 790,300.44 × 331,004.88
  4. Step 4: Simplify right side
    572,810.40x = 261,593,302,306.15
  5. Step 5: Solve for x
    x = 261,593,302,306.15/572,810.40
  6. Step 6: Final answer
    x = 456,683.93

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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.