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Finding the Fourth Proportional to 355,026.14, 532,803.70 and 260,500.58

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Solution

The fourth proportional to 355,026.14, 532,803.70 and 260,500.58 is: 390,944.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,026.14 : 532,803.70 = 260,500.58 : x
  2. Step 2: Convert to fraction form
    355,026.14/532,803.70 = 260,500.58/x
  3. Step 3: Cross multiply
    355,026.14x = 532,803.70 × 260,500.58
  4. Step 4: Simplify right side
    355,026.14x = 138,795,672,876.15
  5. Step 5: Solve for x
    x = 138,795,672,876.15/355,026.14
  6. Step 6: Final answer
    x = 390,944.95

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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.