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Finding the Fourth Proportional to 304,881.20, 457,321.80 and 94,540.40

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Solution

The fourth proportional to 304,881.20, 457,321.80 and 94,540.40 is: 141,810.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,881.20 : 457,321.80 = 94,540.40 : x
  2. Step 2: Convert to fraction form
    304,881.20/457,321.80 = 94,540.40/x
  3. Step 3: Cross multiply
    304,881.20x = 457,321.80 × 94,540.40
  4. Step 4: Simplify right side
    304,881.20x = 43,235,385,900.72
  5. Step 5: Solve for x
    x = 43,235,385,900.72/304,881.20
  6. Step 6: Final answer
    x = 141,810.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.