Home / 805,928.40-1,208,892.60-485,211.60

Finding the Fourth Proportional to 805,928.40, 1,208,892.60 and 485,211.60

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Solution

The fourth proportional to 805,928.40, 1,208,892.60 and 485,211.60 is: 727,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,928.40 : 1,208,892.60 = 485,211.60 : x
  2. Step 2: Convert to fraction form
    805,928.40/1,208,892.60 = 485,211.60/x
  3. Step 3: Cross multiply
    805,928.40x = 1,208,892.60 × 485,211.60
  4. Step 4: Simplify right side
    805,928.40x = 586,568,712,674.16
  5. Step 5: Solve for x
    x = 586,568,712,674.16/805,928.40
  6. Step 6: Final answer
    x = 727,817.40

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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.