Home / 526,243.74-789,365.61-421,721.34

Finding the Fourth Proportional to 526,243.74, 789,365.61 and 421,721.34

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Solution

The fourth proportional to 526,243.74, 789,365.61 and 421,721.34 is: 632,582.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,243.74 : 789,365.61 = 421,721.34 : x
  2. Step 2: Convert to fraction form
    526,243.74/789,365.61 = 421,721.34/x
  3. Step 3: Cross multiply
    526,243.74x = 789,365.61 × 421,721.34
  4. Step 4: Simplify right side
    526,243.74x = 332,892,322,799.12
  5. Step 5: Solve for x
    x = 332,892,322,799.12/526,243.74
  6. Step 6: Final answer
    x = 632,582.01

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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.