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Finding the Fourth Proportional to 536,775.63, 740,751.90 and 307,336.43

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Solution

The fourth proportional to 536,775.63, 740,751.90 and 307,336.43 is: 424,125.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,775.63 : 740,751.90 = 307,336.43 : x
  2. Step 2: Convert to fraction form
    536,775.63/740,751.90 = 307,336.43/x
  3. Step 3: Cross multiply
    536,775.63x = 740,751.90 × 307,336.43
  4. Step 4: Simplify right side
    536,775.63x = 227,660,039,221.28
  5. Step 5: Solve for x
    x = 227,660,039,221.28/536,775.63
  6. Step 6: Final answer
    x = 424,125.14

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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.