Home / 783,085.20-1,174,627.80-409,059.60

Finding the Fourth Proportional to 783,085.20, 1,174,627.80 and 409,059.60

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Solution

The fourth proportional to 783,085.20, 1,174,627.80 and 409,059.60 is: 613,589.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,085.20 : 1,174,627.80 = 409,059.60 : x
  2. Step 2: Convert to fraction form
    783,085.20/1,174,627.80 = 409,059.60/x
  3. Step 3: Cross multiply
    783,085.20x = 1,174,627.80 × 409,059.60
  4. Step 4: Simplify right side
    783,085.20x = 480,492,778,016.88
  5. Step 5: Solve for x
    x = 480,492,778,016.88/783,085.20
  6. Step 6: Final answer
    x = 613,589.40

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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.