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Finding the Fourth Proportional to 486,045.40, 729,068.10 and 335,968.60

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Solution

The fourth proportional to 486,045.40, 729,068.10 and 335,968.60 is: 503,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,045.40 : 729,068.10 = 335,968.60 : x
  2. Step 2: Convert to fraction form
    486,045.40/729,068.10 = 335,968.60/x
  3. Step 3: Cross multiply
    486,045.40x = 729,068.10 × 335,968.60
  4. Step 4: Simplify right side
    486,045.40x = 244,943,988,861.66
  5. Step 5: Solve for x
    x = 244,943,988,861.66/486,045.40
  6. Step 6: Final answer
    x = 503,952.90

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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.