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Finding the Fourth Proportional to 554,183.64, 764,262.54 and 415,809.72

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Solution

The fourth proportional to 554,183.64, 764,262.54 and 415,809.72 is: 573,434.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,183.64 : 764,262.54 = 415,809.72 : x
  2. Step 2: Convert to fraction form
    554,183.64/764,262.54 = 415,809.72/x
  3. Step 3: Cross multiply
    554,183.64x = 764,262.54 × 415,809.72
  4. Step 4: Simplify right side
    554,183.64x = 317,787,792,763.89
  5. Step 5: Solve for x
    x = 317,787,792,763.89/554,183.64
  6. Step 6: Final answer
    x = 573,434.09

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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.