Home / 814,532.40-1,222,576.20-415,623.60

Finding the Fourth Proportional to 814,532.40, 1,222,576.20 and 415,623.60

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Solution

The fourth proportional to 814,532.40, 1,222,576.20 and 415,623.60 is: 623,832.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,532.40 : 1,222,576.20 = 415,623.60 : x
  2. Step 2: Convert to fraction form
    814,532.40/1,222,576.20 = 415,623.60/x
  3. Step 3: Cross multiply
    814,532.40x = 1,222,576.20 × 415,623.60
  4. Step 4: Simplify right side
    814,532.40x = 508,131,521,518.32
  5. Step 5: Solve for x
    x = 508,131,521,518.32/814,532.40
  6. Step 6: Final answer
    x = 623,832.18

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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.