Home / 446,864.10-670,296.15-257,907.30

Finding the Fourth Proportional to 446,864.10, 670,296.15 and 257,907.30

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Solution

The fourth proportional to 446,864.10, 670,296.15 and 257,907.30 is: 386,860.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,864.10 : 670,296.15 = 257,907.30 : x
  2. Step 2: Convert to fraction form
    446,864.10/670,296.15 = 257,907.30/x
  3. Step 3: Cross multiply
    446,864.10x = 670,296.15 × 257,907.30
  4. Step 4: Simplify right side
    446,864.10x = 172,874,270,246.90
  5. Step 5: Solve for x
    x = 172,874,270,246.90/446,864.10
  6. Step 6: Final answer
    x = 386,860.95

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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.