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Finding the Fourth Proportional to 525,845.70, 788,768.55 and 494,741.70

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Solution

The fourth proportional to 525,845.70, 788,768.55 and 494,741.70 is: 742,112.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,845.70 : 788,768.55 = 494,741.70 : x
  2. Step 2: Convert to fraction form
    525,845.70/788,768.55 = 494,741.70/x
  3. Step 3: Cross multiply
    525,845.70x = 788,768.55 × 494,741.70
  4. Step 4: Simplify right side
    525,845.70x = 390,236,693,333.54
  5. Step 5: Solve for x
    x = 390,236,693,333.54/525,845.70
  6. Step 6: Final answer
    x = 742,112.55

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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.