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Finding the Fourth Proportional to 536,775.12, 740,751.21 and 307,335.93

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Solution

The fourth proportional to 536,775.12, 740,751.21 and 307,335.93 is: 424,124.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,775.12 : 740,751.21 = 307,335.93 : x
  2. Step 2: Convert to fraction form
    536,775.12/740,751.21 = 307,335.93/x
  3. Step 3: Cross multiply
    536,775.12x = 740,751.21 × 307,335.93
  4. Step 4: Simplify right side
    536,775.12x = 227,659,458,093.65
  5. Step 5: Solve for x
    x = 227,659,458,093.65/536,775.12
  6. Step 6: Final answer
    x = 424,124.46

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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.