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Finding the Fourth Proportional to 572,978.91, 790,757.99 and 369,453.50

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Solution

The fourth proportional to 572,978.91, 790,757.99 and 369,453.50 is: 509,876.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,978.91 : 790,757.99 = 369,453.50 : x
  2. Step 2: Convert to fraction form
    572,978.91/790,757.99 = 369,453.50/x
  3. Step 3: Cross multiply
    572,978.91x = 790,757.99 × 369,453.50
  4. Step 4: Simplify right side
    572,978.91x = 292,148,312,134.39
  5. Step 5: Solve for x
    x = 292,148,312,134.39/572,978.91
  6. Step 6: Final answer
    x = 509,876.20

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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.