Home / 446,900.10-670,350.15-257,943.30

Finding the Fourth Proportional to 446,900.10, 670,350.15 and 257,943.30

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Solution

The fourth proportional to 446,900.10, 670,350.15 and 257,943.30 is: 386,914.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,900.10 : 670,350.15 = 257,943.30 : x
  2. Step 2: Convert to fraction form
    446,900.10/670,350.15 = 257,943.30/x
  3. Step 3: Cross multiply
    446,900.10x = 670,350.15 × 257,943.30
  4. Step 4: Simplify right side
    446,900.10x = 172,912,329,846.50
  5. Step 5: Solve for x
    x = 172,912,329,846.50/446,900.10
  6. Step 6: Final answer
    x = 386,914.95

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Similar ratio
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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.