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Finding the Fourth Proportional to 421,007.41, 580,998.59 and 230,032.63

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Solution

The fourth proportional to 421,007.41, 580,998.59 and 230,032.63 is: 317,449.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,007.41 : 580,998.59 = 230,032.63 : x
  2. Step 2: Convert to fraction form
    421,007.41/580,998.59 = 230,032.63/x
  3. Step 3: Cross multiply
    421,007.41x = 580,998.59 × 230,032.63
  4. Step 4: Simplify right side
    421,007.41x = 133,648,633,683.99
  5. Step 5: Solve for x
    x = 133,648,633,683.99/421,007.41
  6. Step 6: Final answer
    x = 317,449.60

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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.