Home / 446,868.10-670,302.15-257,911.30

Finding the Fourth Proportional to 446,868.10, 670,302.15 and 257,911.30

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Solution

The fourth proportional to 446,868.10, 670,302.15 and 257,911.30 is: 386,866.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,868.10 : 670,302.15 = 257,911.30 : x
  2. Step 2: Convert to fraction form
    446,868.10/670,302.15 = 257,911.30/x
  3. Step 3: Cross multiply
    446,868.10x = 670,302.15 × 257,911.30
  4. Step 4: Simplify right side
    446,868.10x = 172,878,498,899.30
  5. Step 5: Solve for x
    x = 172,878,498,899.30/446,868.10
  6. Step 6: Final answer
    x = 386,866.95

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Double scale
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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.