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Finding the Fourth Proportional to 330,928.20, 462,300.75 and 330,928.20

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Solution

The fourth proportional to 330,928.20, 462,300.75 and 330,928.20 is: 462,300.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,928.20 : 462,300.75 = 330,928.20 : x
  2. Step 2: Convert to fraction form
    330,928.20/462,300.75 = 330,928.20/x
  3. Step 3: Cross multiply
    330,928.20x = 462,300.75 × 330,928.20
  4. Step 4: Simplify right side
    330,928.20x = 152,988,355,056.15
  5. Step 5: Solve for x
    x = 152,988,355,056.15/330,928.20
  6. Step 6: Final answer
    x = 462,300.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.