Home / 827,910.09-1,240,826.31-354,038.22

Finding the Fourth Proportional to 827,910.09, 1,240,826.31 and 354,038.22

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Solution

The fourth proportional to 827,910.09, 1,240,826.31 and 354,038.22 is: 530,613.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,910.09 : 1,240,826.31 = 354,038.22 : x
  2. Step 2: Convert to fraction form
    827,910.09/1,240,826.31 = 354,038.22/x
  3. Step 3: Cross multiply
    827,910.09x = 1,240,826.31 × 354,038.22
  4. Step 4: Simplify right side
    827,910.09x = 439,299,938,121.57
  5. Step 5: Solve for x
    x = 439,299,938,121.57/827,910.09
  6. Step 6: Final answer
    x = 530,613.10

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Double scale
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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.