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Finding the Fourth Proportional to 407,599.26, 611,343.45 and 154,943.35

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Solution

The fourth proportional to 407,599.26, 611,343.45 and 154,943.35 is: 232,393.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,599.26 : 611,343.45 = 154,943.35 : x
  2. Step 2: Convert to fraction form
    407,599.26/611,343.45 = 154,943.35/x
  3. Step 3: Cross multiply
    407,599.26x = 611,343.45 × 154,943.35
  4. Step 4: Simplify right side
    407,599.26x = 94,723,600,615.20
  5. Step 5: Solve for x
    x = 94,723,600,615.20/407,599.26
  6. Step 6: Final answer
    x = 232,393.95

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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.