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Finding the Fourth Proportional to 525,803.20, 788,704.80 and 336,846.40

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Solution

The fourth proportional to 525,803.20, 788,704.80 and 336,846.40 is: 505,269.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,803.20 : 788,704.80 = 336,846.40 : x
  2. Step 2: Convert to fraction form
    525,803.20/788,704.80 = 336,846.40/x
  3. Step 3: Cross multiply
    525,803.20x = 788,704.80 × 336,846.40
  4. Step 4: Simplify right side
    525,803.20x = 265,672,372,542.72
  5. Step 5: Solve for x
    x = 265,672,372,542.72/525,803.20
  6. Step 6: Final answer
    x = 505,269.60

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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.