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Finding the Fourth Proportional to 549,833.31, 758,731.64 and 304,815.65

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Solution

The fourth proportional to 549,833.31, 758,731.64 and 304,815.65 is: 420,624.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,833.31 : 758,731.64 = 304,815.65 : x
  2. Step 2: Convert to fraction form
    549,833.31/758,731.64 = 304,815.65/x
  3. Step 3: Cross multiply
    549,833.31x = 758,731.64 × 304,815.65
  4. Step 4: Simplify right side
    549,833.31x = 231,273,272,704.43
  5. Step 5: Solve for x
    x = 231,273,272,704.43/549,833.31
  6. Step 6: Final answer
    x = 420,624.34

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1.5x scale

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.