Home / 434,190.80-651,286.20-256,606.40

Finding the Fourth Proportional to 434,190.80, 651,286.20 and 256,606.40

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Solution

The fourth proportional to 434,190.80, 651,286.20 and 256,606.40 is: 384,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,190.80 : 651,286.20 = 256,606.40 : x
  2. Step 2: Convert to fraction form
    434,190.80/651,286.20 = 256,606.40/x
  3. Step 3: Cross multiply
    434,190.80x = 651,286.20 × 256,606.40
  4. Step 4: Simplify right side
    434,190.80x = 167,124,207,151.68
  5. Step 5: Solve for x
    x = 167,124,207,151.68/434,190.80
  6. Step 6: Final answer
    x = 384,909.60

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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.