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Finding the Fourth Proportional to 603,316.20, 904,974.30 and 401,237.40

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Solution

The fourth proportional to 603,316.20, 904,974.30 and 401,237.40 is: 601,856.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,316.20 : 904,974.30 = 401,237.40 : x
  2. Step 2: Convert to fraction form
    603,316.20/904,974.30 = 401,237.40/x
  3. Step 3: Cross multiply
    603,316.20x = 904,974.30 × 401,237.40
  4. Step 4: Simplify right side
    603,316.20x = 363,109,535,198.82
  5. Step 5: Solve for x
    x = 363,109,535,198.82/603,316.20
  6. Step 6: Final answer
    x = 601,856.10

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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.