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Finding the Fourth Proportional to 530,687.78, 796,038.59 and 151,620.89

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Solution

The fourth proportional to 530,687.78, 796,038.59 and 151,620.89 is: 227,433.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,687.78 : 796,038.59 = 151,620.89 : x
  2. Step 2: Convert to fraction form
    530,687.78/796,038.59 = 151,620.89/x
  3. Step 3: Cross multiply
    530,687.78x = 796,038.59 × 151,620.89
  4. Step 4: Simplify right side
    530,687.78x = 120,696,075,889.00
  5. Step 5: Solve for x
    x = 120,696,075,889.00/530,687.78
  6. Step 6: Final answer
    x = 227,433.30

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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.