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Finding the Fourth Proportional to 586,508.38, 879,133.80 and 384,027.72

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Solution

The fourth proportional to 586,508.38, 879,133.80 and 384,027.72 is: 575,629.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,508.38 : 879,133.80 = 384,027.72 : x
  2. Step 2: Convert to fraction form
    586,508.38/879,133.80 = 384,027.72/x
  3. Step 3: Cross multiply
    586,508.38x = 879,133.80 × 384,027.72
  4. Step 4: Simplify right side
    586,508.38x = 337,611,746,932.29
  5. Step 5: Solve for x
    x = 337,611,746,932.29/586,508.38
  6. Step 6: Final answer
    x = 575,629.88

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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.