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Finding the Fourth Proportional to 594,991, 821,004.95 and 349,986.86

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Solution

The fourth proportional to 594,991, 821,004.95 and 349,986.86 is: 482,933.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,991 : 821,004.95 = 349,986.86 : x
  2. Step 2: Convert to fraction form
    594,991/821,004.95 = 349,986.86/x
  3. Step 3: Cross multiply
    594,991x = 821,004.95 × 349,986.86
  4. Step 4: Simplify right side
    594,991x = 287,340,944,494.96
  5. Step 5: Solve for x
    x = 287,340,944,494.96/594,991
  6. Step 6: Final answer
    x = 482,933.26

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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.