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Finding the Fourth Proportional to 630,664.70, 945,997.05 and 618,223.10

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Solution

The fourth proportional to 630,664.70, 945,997.05 and 618,223.10 is: 927,334.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,664.70 : 945,997.05 = 618,223.10 : x
  2. Step 2: Convert to fraction form
    630,664.70/945,997.05 = 618,223.10/x
  3. Step 3: Cross multiply
    630,664.70x = 945,997.05 × 618,223.10
  4. Step 4: Simplify right side
    630,664.70x = 584,837,228,841.86
  5. Step 5: Solve for x
    x = 584,837,228,841.86/630,664.70
  6. Step 6: Final answer
    x = 927,334.65

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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.