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Finding the Fourth Proportional to 304,294.10, 456,441.15 and 126,928.40

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Solution

The fourth proportional to 304,294.10, 456,441.15 and 126,928.40 is: 190,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,294.10 : 456,441.15 = 126,928.40 : x
  2. Step 2: Convert to fraction form
    304,294.10/456,441.15 = 126,928.40/x
  3. Step 3: Cross multiply
    304,294.10x = 456,441.15 × 126,928.40
  4. Step 4: Simplify right side
    304,294.10x = 57,935,344,863.66
  5. Step 5: Solve for x
    x = 57,935,344,863.66/304,294.10
  6. Step 6: Final answer
    x = 190,392.60

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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.