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Finding the Fourth Proportional to 422,748.48, 583,363.80 and 250,657.68

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Solution

The fourth proportional to 422,748.48, 583,363.80 and 250,657.68 is: 345,890.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,748.48 : 583,363.80 = 250,657.68 : x
  2. Step 2: Convert to fraction form
    422,748.48/583,363.80 = 250,657.68/x
  3. Step 3: Cross multiply
    422,748.48x = 583,363.80 × 250,657.68
  4. Step 4: Simplify right side
    422,748.48x = 146,224,616,703.98
  5. Step 5: Solve for x
    x = 146,224,616,703.98/422,748.48
  6. Step 6: Final answer
    x = 345,890.34

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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.