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Finding the Fourth Proportional to 468,426.40, 702,245.84 and 379,459.28

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Solution

The fourth proportional to 468,426.40, 702,245.84 and 379,459.28 is: 568,869.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,426.40 : 702,245.84 = 379,459.28 : x
  2. Step 2: Convert to fraction form
    468,426.40/702,245.84 = 379,459.28/x
  3. Step 3: Cross multiply
    468,426.40x = 702,245.84 × 379,459.28
  4. Step 4: Simplify right side
    468,426.40x = 266,473,700,829.40
  5. Step 5: Solve for x
    x = 266,473,700,829.40/468,426.40
  6. Step 6: Final answer
    x = 568,869.95

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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.