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Finding the Fourth Proportional to 443,802.10, 665,703.15 and 372,943.30

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Solution

The fourth proportional to 443,802.10, 665,703.15 and 372,943.30 is: 559,414.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,802.10 : 665,703.15 = 372,943.30 : x
  2. Step 2: Convert to fraction form
    443,802.10/665,703.15 = 372,943.30/x
  3. Step 3: Cross multiply
    443,802.10x = 665,703.15 × 372,943.30
  4. Step 4: Simplify right side
    443,802.10x = 248,269,529,581.40
  5. Step 5: Solve for x
    x = 248,269,529,581.40/443,802.10
  6. Step 6: Final answer
    x = 559,414.95

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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.