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Finding the Fourth Proportional to 526,648.66, 789,973.03 and 127,289.32

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Solution

The fourth proportional to 526,648.66, 789,973.03 and 127,289.32 is: 190,933.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,648.66 : 789,973.03 = 127,289.32 : x
  2. Step 2: Convert to fraction form
    526,648.66/789,973.03 = 127,289.32/x
  3. Step 3: Cross multiply
    526,648.66x = 789,973.03 × 127,289.32
  4. Step 4: Simplify right side
    526,648.66x = 100,555,132,076.82
  5. Step 5: Solve for x
    x = 100,555,132,076.82/526,648.66
  6. Step 6: Final answer
    x = 190,933.99

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.