Home / 289,416.20-434,124.30-194,937.80

Finding the Fourth Proportional to 289,416.20, 434,124.30 and 194,937.80

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Solution

The fourth proportional to 289,416.20, 434,124.30 and 194,937.80 is: 292,406.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,416.20 : 434,124.30 = 194,937.80 : x
  2. Step 2: Convert to fraction form
    289,416.20/434,124.30 = 194,937.80/x
  3. Step 3: Cross multiply
    289,416.20x = 434,124.30 × 194,937.80
  4. Step 4: Simplify right side
    289,416.20x = 84,627,235,968.54
  5. Step 5: Solve for x
    x = 84,627,235,968.54/289,416.20
  6. Step 6: Final answer
    x = 292,406.70

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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.