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Finding the Fourth Proportional to 586,318.77, 879,621.39 and 186,959.61

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Solution

The fourth proportional to 586,318.77, 879,621.39 and 186,959.61 is: 280,485.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,318.77 : 879,621.39 = 186,959.61 : x
  2. Step 2: Convert to fraction form
    586,318.77/879,621.39 = 186,959.61/x
  3. Step 3: Cross multiply
    586,318.77x = 879,621.39 × 186,959.61
  4. Step 4: Simplify right side
    586,318.77x = 164,453,672,022.06
  5. Step 5: Solve for x
    x = 164,453,672,022.06/586,318.77
  6. Step 6: Final answer
    x = 280,485.09

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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.