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Finding the Fourth Proportional to 423,288.75, 584,138.48 and 253,522.88

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Solution

The fourth proportional to 423,288.75, 584,138.48 and 253,522.88 is: 349,861.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,288.75 : 584,138.48 = 253,522.88 : x
  2. Step 2: Convert to fraction form
    423,288.75/584,138.48 = 253,522.88/x
  3. Step 3: Cross multiply
    423,288.75x = 584,138.48 × 253,522.88
  4. Step 4: Simplify right side
    423,288.75x = 148,092,466,944.10
  5. Step 5: Solve for x
    x = 148,092,466,944.10/423,288.75
  6. Step 6: Final answer
    x = 349,861.57

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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.