Home / 789,358.19-1,089,812.40-547,556.18

Finding the Fourth Proportional to 789,358.19, 1,089,812.40 and 547,556.18

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Solution

The fourth proportional to 789,358.19, 1,089,812.40 and 547,556.18 is: 755,973.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,358.19 : 1,089,812.40 = 547,556.18 : x
  2. Step 2: Convert to fraction form
    789,358.19/1,089,812.40 = 547,556.18/x
  3. Step 3: Cross multiply
    789,358.19x = 1,089,812.40 × 547,556.18
  4. Step 4: Simplify right side
    789,358.19x = 596,733,514,660.63
  5. Step 5: Solve for x
    x = 596,733,514,660.63/789,358.19
  6. Step 6: Final answer
    x = 755,973.05

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Half scale
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Double scale
Find fourth proportional to 789,359.19, 1,089,813.78 and 547,557.18
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.