Home / 857,673.90-1,183,649.95-490,205.11

Finding the Fourth Proportional to 857,673.90, 1,183,649.95 and 490,205.11

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Solution

The fourth proportional to 857,673.90, 1,183,649.95 and 490,205.11 is: 676,517.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,673.90 : 1,183,649.95 = 490,205.11 : x
  2. Step 2: Convert to fraction form
    857,673.90/1,183,649.95 = 490,205.11/x
  3. Step 3: Cross multiply
    857,673.90x = 1,183,649.95 × 490,205.11
  4. Step 4: Simplify right side
    857,673.90x = 580,231,253,941.25
  5. Step 5: Solve for x
    x = 580,231,253,941.25/857,673.90
  6. Step 6: Final answer
    x = 676,517.33

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.