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Finding the Fourth Proportional to 364,620.72, 546,143.76 and 355,697.76

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Solution

The fourth proportional to 364,620.72, 546,143.76 and 355,697.76 is: 532,778.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,620.72 : 546,143.76 = 355,697.76 : x
  2. Step 2: Convert to fraction form
    364,620.72/546,143.76 = 355,697.76/x
  3. Step 3: Cross multiply
    364,620.72x = 546,143.76 × 355,697.76
  4. Step 4: Simplify right side
    364,620.72x = 194,262,112,069.98
  5. Step 5: Solve for x
    x = 194,262,112,069.98/364,620.72
  6. Step 6: Final answer
    x = 532,778.59

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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.