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Finding the Fourth Proportional to 449,803.13, 620,326.54 and 373,200.94

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Solution

The fourth proportional to 449,803.13, 620,326.54 and 373,200.94 is: 514,683.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,803.13 : 620,326.54 = 373,200.94 : x
  2. Step 2: Convert to fraction form
    449,803.13/620,326.54 = 373,200.94/x
  3. Step 3: Cross multiply
    449,803.13x = 620,326.54 × 373,200.94
  4. Step 4: Simplify right side
    449,803.13x = 231,506,447,834.95
  5. Step 5: Solve for x
    x = 231,506,447,834.95/449,803.13
  6. Step 6: Final answer
    x = 514,683.94

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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.