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Finding the Fourth Proportional to 530,782.33, 732,474.52 and 289,068.94

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Solution

The fourth proportional to 530,782.33, 732,474.52 and 289,068.94 is: 398,912.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,782.33 : 732,474.52 = 289,068.94 : x
  2. Step 2: Convert to fraction form
    530,782.33/732,474.52 = 289,068.94/x
  3. Step 3: Cross multiply
    530,782.33x = 732,474.52 × 289,068.94
  4. Step 4: Simplify right side
    530,782.33x = 211,735,630,799.74
  5. Step 5: Solve for x
    x = 211,735,630,799.74/530,782.33
  6. Step 6: Final answer
    x = 398,912.36

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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.