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Finding the Fourth Proportional to 436,354.93, 601,483.62 and 399,744.55

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Solution

The fourth proportional to 436,354.93, 601,483.62 and 399,744.55 is: 551,018.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,354.93 : 601,483.62 = 399,744.55 : x
  2. Step 2: Convert to fraction form
    436,354.93/601,483.62 = 399,744.55/x
  3. Step 3: Cross multiply
    436,354.93x = 601,483.62 × 399,744.55
  4. Step 4: Simplify right side
    436,354.93x = 240,439,799,009.27
  5. Step 5: Solve for x
    x = 240,439,799,009.27/436,354.93
  6. Step 6: Final answer
    x = 551,018.87

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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.