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Finding the Fourth Proportional to 424,787.54, 586,139.64 and 243,464.54

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Solution

The fourth proportional to 424,787.54, 586,139.64 and 243,464.54 is: 335,942.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,787.54 : 586,139.64 = 243,464.54 : x
  2. Step 2: Convert to fraction form
    424,787.54/586,139.64 = 243,464.54/x
  3. Step 3: Cross multiply
    424,787.54x = 586,139.64 × 243,464.54
  4. Step 4: Simplify right side
    424,787.54x = 142,704,217,828.37
  5. Step 5: Solve for x
    x = 142,704,217,828.37/424,787.54
  6. Step 6: Final answer
    x = 335,942.57

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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.