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Finding the Fourth Proportional to 373,433.94, 515,276.37 and 354,518.82

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Solution

The fourth proportional to 373,433.94, 515,276.37 and 354,518.82 is: 489,176.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,433.94 : 515,276.37 = 354,518.82 : x
  2. Step 2: Convert to fraction form
    373,433.94/515,276.37 = 354,518.82/x
  3. Step 3: Cross multiply
    373,433.94x = 515,276.37 × 354,518.82
  4. Step 4: Simplify right side
    373,433.94x = 182,675,170,666.28
  5. Step 5: Solve for x
    x = 182,675,170,666.28/373,433.94
  6. Step 6: Final answer
    x = 489,176.67

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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.