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Finding the Fourth Proportional to 321,904.40, 482,856.60 and 237,923.60

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Solution

The fourth proportional to 321,904.40, 482,856.60 and 237,923.60 is: 356,885.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,904.40 : 482,856.60 = 237,923.60 : x
  2. Step 2: Convert to fraction form
    321,904.40/482,856.60 = 237,923.60/x
  3. Step 3: Cross multiply
    321,904.40x = 482,856.60 × 237,923.60
  4. Step 4: Simplify right side
    321,904.40x = 114,882,980,555.76
  5. Step 5: Solve for x
    x = 114,882,980,555.76/321,904.40
  6. Step 6: Final answer
    x = 356,885.40

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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.