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Finding the Fourth Proportional to 459,230.60, 687,617.10 and 292,113.80

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Solution

The fourth proportional to 459,230.60, 687,617.10 and 292,113.80 is: 437,389.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,230.60 : 687,617.10 = 292,113.80 : x
  2. Step 2: Convert to fraction form
    459,230.60/687,617.10 = 292,113.80/x
  3. Step 3: Cross multiply
    459,230.60x = 687,617.10 × 292,113.80
  4. Step 4: Simplify right side
    459,230.60x = 200,862,444,025.98
  5. Step 5: Solve for x
    x = 200,862,444,025.98/459,230.60
  6. Step 6: Final answer
    x = 437,389.07

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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.