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Finding the Fourth Proportional to 491,607.76, 737,697.84 and 207,280.48

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Solution

The fourth proportional to 491,607.76, 737,697.84 and 207,280.48 is: 311,041.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,607.76 : 737,697.84 = 207,280.48 : x
  2. Step 2: Convert to fraction form
    491,607.76/737,697.84 = 207,280.48/x
  3. Step 3: Cross multiply
    491,607.76x = 737,697.84 × 207,280.48
  4. Step 4: Simplify right side
    491,607.76x = 152,910,362,370.16
  5. Step 5: Solve for x
    x = 152,910,362,370.16/491,607.76
  6. Step 6: Final answer
    x = 311,041.39

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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.