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Finding the Fourth Proportional to 584,078.80, 874,735.80 and 396,072.40

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Solution

The fourth proportional to 584,078.80, 874,735.80 and 396,072.40 is: 593,171.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,078.80 : 874,735.80 = 396,072.40 : x
  2. Step 2: Convert to fraction form
    584,078.80/874,735.80 = 396,072.40/x
  3. Step 3: Cross multiply
    584,078.80x = 874,735.80 × 396,072.40
  4. Step 4: Simplify right side
    584,078.80x = 346,458,707,671.92
  5. Step 5: Solve for x
    x = 346,458,707,671.92/584,078.80
  6. Step 6: Final answer
    x = 593,171.17

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1.5x scale

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.