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Finding the Fourth Proportional to 528,194.58, 728,925.01 and 298,747.37

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Solution

The fourth proportional to 528,194.58, 728,925.01 and 298,747.37 is: 412,280.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,194.58 : 728,925.01 = 298,747.37 : x
  2. Step 2: Convert to fraction form
    528,194.58/728,925.01 = 298,747.37/x
  3. Step 3: Cross multiply
    528,194.58x = 728,925.01 × 298,747.37
  4. Step 4: Simplify right side
    528,194.58x = 217,764,429,664.72
  5. Step 5: Solve for x
    x = 217,764,429,664.72/528,194.58
  6. Step 6: Final answer
    x = 412,280.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.