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Finding the Fourth Proportional to 636,137.78, 954,106.43 and 528,756.68

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Solution

The fourth proportional to 636,137.78, 954,106.43 and 528,756.68 is: 793,051.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,137.78 : 954,106.43 = 528,756.68 : x
  2. Step 2: Convert to fraction form
    636,137.78/954,106.43 = 528,756.68/x
  3. Step 3: Cross multiply
    636,137.78x = 954,106.43 × 528,756.68
  4. Step 4: Simplify right side
    636,137.78x = 504,490,148,034.94
  5. Step 5: Solve for x
    x = 504,490,148,034.94/636,137.78
  6. Step 6: Final answer
    x = 793,051.71

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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.