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Finding the Fourth Proportional to 449,802.50, 620,325.68 and 373,200.32

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Solution

The fourth proportional to 449,802.50, 620,325.68 and 373,200.32 is: 514,683.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,802.50 : 620,325.68 = 373,200.32 : x
  2. Step 2: Convert to fraction form
    449,802.50/620,325.68 = 373,200.32/x
  3. Step 3: Cross multiply
    449,802.50x = 620,325.68 × 373,200.32
  4. Step 4: Simplify right side
    449,802.50x = 231,505,741,038.31
  5. Step 5: Solve for x
    x = 231,505,741,038.31/449,802.50
  6. Step 6: Final answer
    x = 514,683.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.