Home / 814,534.40-1,222,579.20-415,625.60

Finding the Fourth Proportional to 814,534.40, 1,222,579.20 and 415,625.60

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Solution

The fourth proportional to 814,534.40, 1,222,579.20 and 415,625.60 is: 623,835.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,534.40 : 1,222,579.20 = 415,625.60 : x
  2. Step 2: Convert to fraction form
    814,534.40/1,222,579.20 = 415,625.60/x
  3. Step 3: Cross multiply
    814,534.40x = 1,222,579.20 × 415,625.60
  4. Step 4: Simplify right side
    814,534.40x = 508,135,213,547.52
  5. Step 5: Solve for x
    x = 508,135,213,547.52/814,534.40
  6. Step 6: Final answer
    x = 623,835.18

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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.