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Finding the Fourth Proportional to 630,900.90, 946,351.35 and 365,180.40

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Solution

The fourth proportional to 630,900.90, 946,351.35 and 365,180.40 is: 547,770.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,900.90 : 946,351.35 = 365,180.40 : x
  2. Step 2: Convert to fraction form
    630,900.90/946,351.35 = 365,180.40/x
  3. Step 3: Cross multiply
    630,900.90x = 946,351.35 × 365,180.40
  4. Step 4: Simplify right side
    630,900.90x = 345,588,964,533.54
  5. Step 5: Solve for x
    x = 345,588,964,533.54/630,900.90
  6. Step 6: Final answer
    x = 547,770.60

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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.