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Finding the Fourth Proportional to 586,311.09, 879,515.96 and 187,008.63

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Solution

The fourth proportional to 586,311.09, 879,515.96 and 187,008.63 is: 280,528.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,311.09 : 879,515.96 = 187,008.63 : x
  2. Step 2: Convert to fraction form
    586,311.09/879,515.96 = 187,008.63/x
  3. Step 3: Cross multiply
    586,311.09x = 879,515.96 × 187,008.63
  4. Step 4: Simplify right side
    586,311.09x = 164,477,073,807.69
  5. Step 5: Solve for x
    x = 164,477,073,807.69/586,311.09
  6. Step 6: Final answer
    x = 280,528.68

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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.