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Finding the Fourth Proportional to 468,432.40, 702,254.84 and 379,465.28

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Solution

The fourth proportional to 468,432.40, 702,254.84 and 379,465.28 is: 568,878.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,432.40 : 702,254.84 = 379,465.28 : x
  2. Step 2: Convert to fraction form
    468,432.40/702,254.84 = 379,465.28/x
  3. Step 3: Cross multiply
    468,432.40x = 702,254.84 × 379,465.28
  4. Step 4: Simplify right side
    468,432.40x = 266,481,329,491.96
  5. Step 5: Solve for x
    x = 266,481,329,491.96/468,432.40
  6. Step 6: Final answer
    x = 568,878.94

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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.