Home / 651,127.20-976,690.80-414,639.60

Finding the Fourth Proportional to 651,127.20, 976,690.80 and 414,639.60

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Solution

The fourth proportional to 651,127.20, 976,690.80 and 414,639.60 is: 621,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,127.20 : 976,690.80 = 414,639.60 : x
  2. Step 2: Convert to fraction form
    651,127.20/976,690.80 = 414,639.60/x
  3. Step 3: Cross multiply
    651,127.20x = 976,690.80 × 414,639.60
  4. Step 4: Simplify right side
    651,127.20x = 404,974,682,635.68
  5. Step 5: Solve for x
    x = 404,974,682,635.68/651,127.20
  6. Step 6: Final answer
    x = 621,959.40

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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.