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Finding the Fourth Proportional to 530,792.51, 732,524.31 and 399,735.51

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Solution

The fourth proportional to 530,792.51, 732,524.31 and 399,735.51 is: 551,658.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,792.51 : 732,524.31 = 399,735.51 : x
  2. Step 2: Convert to fraction form
    530,792.51/732,524.31 = 399,735.51/x
  3. Step 3: Cross multiply
    530,792.51x = 732,524.31 × 399,735.51
  4. Step 4: Simplify right side
    530,792.51x = 292,815,975,898.28
  5. Step 5: Solve for x
    x = 292,815,975,898.28/530,792.51
  6. Step 6: Final answer
    x = 551,658.08

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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.