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Finding the Fourth Proportional to 384,289.92, 530,167.68 and 256,763.52

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Solution

The fourth proportional to 384,289.92, 530,167.68 and 256,763.52 is: 354,231.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,289.92 : 530,167.68 = 256,763.52 : x
  2. Step 2: Convert to fraction form
    384,289.92/530,167.68 = 256,763.52/x
  3. Step 3: Cross multiply
    384,289.92x = 530,167.68 × 256,763.52
  4. Step 4: Simplify right side
    384,289.92x = 136,127,719,707.03
  5. Step 5: Solve for x
    x = 136,127,719,707.03/384,289.92
  6. Step 6: Final answer
    x = 354,231.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.