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Finding the Fourth Proportional to 342,003.70, 479,592.50 and 342,003.70

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Solution

The fourth proportional to 342,003.70, 479,592.50 and 342,003.70 is: 479,592.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,003.70 : 479,592.50 = 342,003.70 : x
  2. Step 2: Convert to fraction form
    342,003.70/479,592.50 = 342,003.70/x
  3. Step 3: Cross multiply
    342,003.70x = 479,592.50 × 342,003.70
  4. Step 4: Simplify right side
    342,003.70x = 164,022,409,492.25
  5. Step 5: Solve for x
    x = 164,022,409,492.25/342,003.70
  6. Step 6: Final answer
    x = 479,592.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.