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Finding the Fourth Proportional to 423,443.70, 584,255.70 and 251,272.67

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Solution

The fourth proportional to 423,443.70, 584,255.70 and 251,272.67 is: 346,698.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,443.70 : 584,255.70 = 251,272.67 : x
  2. Step 2: Convert to fraction form
    423,443.70/584,255.70 = 251,272.67/x
  3. Step 3: Cross multiply
    423,443.70x = 584,255.70 × 251,272.67
  4. Step 4: Simplify right side
    423,443.70x = 146,807,486,780.44
  5. Step 5: Solve for x
    x = 146,807,486,780.44/423,443.70
  6. Step 6: Final answer
    x = 346,698.95

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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.