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Finding the Fourth Proportional to 353,435.55, 530,158.80 and 335,491.21

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Solution

The fourth proportional to 353,435.55, 530,158.80 and 335,491.21 is: 503,242.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,435.55 : 530,158.80 = 335,491.21 : x
  2. Step 2: Convert to fraction form
    353,435.55/530,158.80 = 335,491.21/x
  3. Step 3: Cross multiply
    353,435.55x = 530,158.80 × 335,491.21
  4. Step 4: Simplify right side
    353,435.55x = 177,863,617,304.15
  5. Step 5: Solve for x
    x = 177,863,617,304.15/353,435.55
  6. Step 6: Final answer
    x = 503,242.01

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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.