Home / 800,211.60-1,200,317.40-577,137.60

Finding the Fourth Proportional to 800,211.60, 1,200,317.40 and 577,137.60

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Solution

The fourth proportional to 800,211.60, 1,200,317.40 and 577,137.60 is: 865,706.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,211.60 : 1,200,317.40 = 577,137.60 : x
  2. Step 2: Convert to fraction form
    800,211.60/1,200,317.40 = 577,137.60/x
  3. Step 3: Cross multiply
    800,211.60x = 1,200,317.40 × 577,137.60
  4. Step 4: Simplify right side
    800,211.60x = 692,748,303,474.24
  5. Step 5: Solve for x
    x = 692,748,303,474.24/800,211.60
  6. Step 6: Final answer
    x = 865,706.40

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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.