Home / 434,087.20-651,130.80-256,794.40

Finding the Fourth Proportional to 434,087.20, 651,130.80 and 256,794.40

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Solution

The fourth proportional to 434,087.20, 651,130.80 and 256,794.40 is: 385,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,087.20 : 651,130.80 = 256,794.40 : x
  2. Step 2: Convert to fraction form
    434,087.20/651,130.80 = 256,794.40/x
  3. Step 3: Cross multiply
    434,087.20x = 651,130.80 × 256,794.40
  4. Step 4: Simplify right side
    434,087.20x = 167,206,743,107.52
  5. Step 5: Solve for x
    x = 167,206,743,107.52/434,087.20
  6. Step 6: Final answer
    x = 385,191.60

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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.