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Finding the Fourth Proportional to 321,903.60, 482,855.40 and 195,932.40

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Solution

The fourth proportional to 321,903.60, 482,855.40 and 195,932.40 is: 293,898.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,903.60 : 482,855.40 = 195,932.40 : x
  2. Step 2: Convert to fraction form
    321,903.60/482,855.40 = 195,932.40/x
  3. Step 3: Cross multiply
    321,903.60x = 482,855.40 × 195,932.40
  4. Step 4: Simplify right side
    321,903.60x = 94,607,017,374.96
  5. Step 5: Solve for x
    x = 94,607,017,374.96/321,903.60
  6. Step 6: Final answer
    x = 293,898.60

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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.