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Finding the Fourth Proportional to 376,430.40, 519,245.69 and 223,367.72

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Solution

The fourth proportional to 376,430.40, 519,245.69 and 223,367.72 is: 308,112.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,430.40 : 519,245.69 = 223,367.72 : x
  2. Step 2: Convert to fraction form
    376,430.40/519,245.69 = 223,367.72/x
  3. Step 3: Cross multiply
    376,430.40x = 519,245.69 × 223,367.72
  4. Step 4: Simplify right side
    376,430.40x = 115,982,722,182.06
  5. Step 5: Solve for x
    x = 115,982,722,182.06/376,430.40
  6. Step 6: Final answer
    x = 308,112.00

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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.