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Finding the Fourth Proportional to 424,230.96, 585,440.64 and 230,640.56

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Solution

The fourth proportional to 424,230.96, 585,440.64 and 230,640.56 is: 318,285.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,230.96 : 585,440.64 = 230,640.56 : x
  2. Step 2: Convert to fraction form
    424,230.96/585,440.64 = 230,640.56/x
  3. Step 3: Cross multiply
    424,230.96x = 585,440.64 × 230,640.56
  4. Step 4: Simplify right side
    424,230.96x = 135,026,357,056.36
  5. Step 5: Solve for x
    x = 135,026,357,056.36/424,230.96
  6. Step 6: Final answer
    x = 318,285.01

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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.