Home / 1,089,766.34-1,503,854-630,900.36

Finding the Fourth Proportional to 1,089,766.34, 1,503,854 and 630,900.36

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Solution

The fourth proportional to 1,089,766.34, 1,503,854 and 630,900.36 is: 870,628.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,766.34 : 1,503,854 = 630,900.36 : x
  2. Step 2: Convert to fraction form
    1,089,766.34/1,503,854 = 630,900.36/x
  3. Step 3: Cross multiply
    1,089,766.34x = 1,503,854 × 630,900.36
  4. Step 4: Simplify right side
    1,089,766.34x = 948,782,029,987.44
  5. Step 5: Solve for x
    x = 948,782,029,987.44/1,089,766.34
  6. Step 6: Final answer
    x = 870,628.86

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.