Home / 787,611.60-1,181,417.40-630,147.60

Finding the Fourth Proportional to 787,611.60, 1,181,417.40 and 630,147.60

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Solution

The fourth proportional to 787,611.60, 1,181,417.40 and 630,147.60 is: 945,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,611.60 : 1,181,417.40 = 630,147.60 : x
  2. Step 2: Convert to fraction form
    787,611.60/1,181,417.40 = 630,147.60/x
  3. Step 3: Cross multiply
    787,611.60x = 1,181,417.40 × 630,147.60
  4. Step 4: Simplify right side
    787,611.60x = 744,467,339,208.24
  5. Step 5: Solve for x
    x = 744,467,339,208.24/787,611.60
  6. Step 6: Final answer
    x = 945,221.40

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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.