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Finding the Fourth Proportional to 533,345.60, 800,018.40 and 492,795.20

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Solution

The fourth proportional to 533,345.60, 800,018.40 and 492,795.20 is: 739,192.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,345.60 : 800,018.40 = 492,795.20 : x
  2. Step 2: Convert to fraction form
    533,345.60/800,018.40 = 492,795.20/x
  3. Step 3: Cross multiply
    533,345.60x = 800,018.40 × 492,795.20
  4. Step 4: Simplify right side
    533,345.60x = 394,245,227,431.68
  5. Step 5: Solve for x
    x = 394,245,227,431.68/533,345.60
  6. Step 6: Final answer
    x = 739,192.80

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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.