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Finding the Fourth Proportional to 573,139.80, 803,576.70 and 573,139.80

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Solution

The fourth proportional to 573,139.80, 803,576.70 and 573,139.80 is: 803,576.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,139.80 : 803,576.70 = 573,139.80 : x
  2. Step 2: Convert to fraction form
    573,139.80/803,576.70 = 573,139.80/x
  3. Step 3: Cross multiply
    573,139.80x = 803,576.70 × 573,139.80
  4. Step 4: Simplify right side
    573,139.80x = 460,561,789,122.66
  5. Step 5: Solve for x
    x = 460,561,789,122.66/573,139.80
  6. Step 6: Final answer
    x = 803,576.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.