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Finding the Fourth Proportional to 459,235.60, 687,624.60 and 292,118.80

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Solution

The fourth proportional to 459,235.60, 687,624.60 and 292,118.80 is: 437,396.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,235.60 : 687,624.60 = 292,118.80 : x
  2. Step 2: Convert to fraction form
    459,235.60/687,624.60 = 292,118.80/x
  3. Step 3: Cross multiply
    459,235.60x = 687,624.60 × 292,118.80
  4. Step 4: Simplify right side
    459,235.60x = 200,868,073,002.48
  5. Step 5: Solve for x
    x = 200,868,073,002.48/459,235.60
  6. Step 6: Final answer
    x = 437,396.56

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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.