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Finding the Fourth Proportional to 496,035.63, 744,384.33 and 318,669.93

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Solution

The fourth proportional to 496,035.63, 744,384.33 and 318,669.93 is: 478,217.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,035.63 : 744,384.33 = 318,669.93 : x
  2. Step 2: Convert to fraction form
    496,035.63/744,384.33 = 318,669.93/x
  3. Step 3: Cross multiply
    496,035.63x = 744,384.33 × 318,669.93
  4. Step 4: Simplify right side
    496,035.63x = 237,212,902,334.20
  5. Step 5: Solve for x
    x = 237,212,902,334.20/496,035.63
  6. Step 6: Final answer
    x = 478,217.47

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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.