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Finding the Fourth Proportional to 423,589.15, 584,258.02 and 359,485.48

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Solution

The fourth proportional to 423,589.15, 584,258.02 and 359,485.48 is: 495,839.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,589.15 : 584,258.02 = 359,485.48 : x
  2. Step 2: Convert to fraction form
    423,589.15/584,258.02 = 359,485.48/x
  3. Step 3: Cross multiply
    423,589.15x = 584,258.02 × 359,485.48
  4. Step 4: Simplify right side
    423,589.15x = 210,032,274,763.55
  5. Step 5: Solve for x
    x = 210,032,274,763.55/423,589.15
  6. Step 6: Final answer
    x = 495,839.60

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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.