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Finding the Fourth Proportional to 536,591.74, 740,335.11 and 321,653.38

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Solution

The fourth proportional to 536,591.74, 740,335.11 and 321,653.38 is: 443,784.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,591.74 : 740,335.11 = 321,653.38 : x
  2. Step 2: Convert to fraction form
    536,591.74/740,335.11 = 321,653.38/x
  3. Step 3: Cross multiply
    536,591.74x = 740,335.11 × 321,653.38
  4. Step 4: Simplify right side
    536,591.74x = 238,131,290,464.17
  5. Step 5: Solve for x
    x = 238,131,290,464.17/536,591.74
  6. Step 6: Final answer
    x = 443,784.86

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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.