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Finding the Fourth Proportional to 382,328.40, 573,346.80 and 116,000.40

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Solution

The fourth proportional to 382,328.40, 573,346.80 and 116,000.40 is: 173,956.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,328.40 : 573,346.80 = 116,000.40 : x
  2. Step 2: Convert to fraction form
    382,328.40/573,346.80 = 116,000.40/x
  3. Step 3: Cross multiply
    382,328.40x = 573,346.80 × 116,000.40
  4. Step 4: Simplify right side
    382,328.40x = 66,508,458,138.72
  5. Step 5: Solve for x
    x = 66,508,458,138.72/382,328.40
  6. Step 6: Final answer
    x = 173,956.36

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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.