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Finding the Fourth Proportional to 639,528.84, 959,100.96 and 526,929.96

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Solution

The fourth proportional to 639,528.84, 959,100.96 and 526,929.96 is: 790,236.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,528.84 : 959,100.96 = 526,929.96 : x
  2. Step 2: Convert to fraction form
    639,528.84/959,100.96 = 526,929.96/x
  3. Step 3: Cross multiply
    639,528.84x = 959,100.96 × 526,929.96
  4. Step 4: Simplify right side
    639,528.84x = 505,379,030,488.76
  5. Step 5: Solve for x
    x = 505,379,030,488.76/639,528.84
  6. Step 6: Final answer
    x = 790,236.50

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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.