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Finding the Fourth Proportional to 592,690, 889,113.12 and 193,190.80

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Solution

The fourth proportional to 592,690, 889,113.12 and 193,190.80 is: 289,811.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,690 : 889,113.12 = 193,190.80 : x
  2. Step 2: Convert to fraction form
    592,690/889,113.12 = 193,190.80/x
  3. Step 3: Cross multiply
    592,690x = 889,113.12 × 193,190.80
  4. Step 4: Simplify right side
    592,690x = 171,768,474,943.30
  5. Step 5: Solve for x
    x = 171,768,474,943.30/592,690
  6. Step 6: Final answer
    x = 289,811.66

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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.