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Finding the Fourth Proportional to 488,987.34, 733,558.80 and 208,507.02

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Solution

The fourth proportional to 488,987.34, 733,558.80 and 208,507.02 is: 312,793.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,987.34 : 733,558.80 = 208,507.02 : x
  2. Step 2: Convert to fraction form
    488,987.34/733,558.80 = 208,507.02/x
  3. Step 3: Cross multiply
    488,987.34x = 733,558.80 × 208,507.02
  4. Step 4: Simplify right side
    488,987.34x = 152,952,159,382.78
  5. Step 5: Solve for x
    x = 152,952,159,382.78/488,987.34
  6. Step 6: Final answer
    x = 312,793.70

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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.