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Finding the Fourth Proportional to 587,521.56, 879,915.36 and 571,359.12

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Solution

The fourth proportional to 587,521.56, 879,915.36 and 571,359.12 is: 855,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,521.56 : 879,915.36 = 571,359.12 : x
  2. Step 2: Convert to fraction form
    587,521.56/879,915.36 = 571,359.12/x
  3. Step 3: Cross multiply
    587,521.56x = 879,915.36 × 571,359.12
  4. Step 4: Simplify right side
    587,521.56x = 502,747,665,764.08
  5. Step 5: Solve for x
    x = 502,747,665,764.08/587,521.56
  6. Step 6: Final answer
    x = 855,709.30

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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.