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Finding the Fourth Proportional to 615,098.56, 848,082 and 505,821.12

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Solution

The fourth proportional to 615,098.56, 848,082 and 505,821.12 is: 697,413.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,098.56 : 848,082 = 505,821.12 : x
  2. Step 2: Convert to fraction form
    615,098.56/848,082 = 505,821.12/x
  3. Step 3: Cross multiply
    615,098.56x = 848,082 × 505,821.12
  4. Step 4: Simplify right side
    615,098.56x = 428,977,787,091.84
  5. Step 5: Solve for x
    x = 428,977,787,091.84/615,098.56
  6. Step 6: Final answer
    x = 697,413.09

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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.