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Finding the Fourth Proportional to 996,485.40, 1,494,728.10 and 365,317.20

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Solution

The fourth proportional to 996,485.40, 1,494,728.10 and 365,317.20 is: 547,975.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,485.40 : 1,494,728.10 = 365,317.20 : x
  2. Step 2: Convert to fraction form
    996,485.40/1,494,728.10 = 365,317.20/x
  3. Step 3: Cross multiply
    996,485.40x = 1,494,728.10 × 365,317.20
  4. Step 4: Simplify right side
    996,485.40x = 546,049,884,253.32
  5. Step 5: Solve for x
    x = 546,049,884,253.32/996,485.40
  6. Step 6: Final answer
    x = 547,975.80

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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.