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Finding the Fourth Proportional to 586,843.94, 879,737.78 and 212,604.50

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Solution

The fourth proportional to 586,843.94, 879,737.78 and 212,604.50 is: 318,715.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,843.94 : 879,737.78 = 212,604.50 : x
  2. Step 2: Convert to fraction form
    586,843.94/879,737.78 = 212,604.50/x
  3. Step 3: Cross multiply
    586,843.94x = 879,737.78 × 212,604.50
  4. Step 4: Simplify right side
    586,843.94x = 187,036,210,848.01
  5. Step 5: Solve for x
    x = 187,036,210,848.01/586,843.94
  6. Step 6: Final answer
    x = 318,715.42

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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.