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Finding the Fourth Proportional to 530,903.46, 732,653.18 and 289,188.02

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Solution

The fourth proportional to 530,903.46, 732,653.18 and 289,188.02 is: 399,082.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,903.46 : 732,653.18 = 289,188.02 : x
  2. Step 2: Convert to fraction form
    530,903.46/732,653.18 = 289,188.02/x
  3. Step 3: Cross multiply
    530,903.46x = 732,653.18 × 289,188.02
  4. Step 4: Simplify right side
    530,903.46x = 211,874,517,361.70
  5. Step 5: Solve for x
    x = 211,874,517,361.70/530,903.46
  6. Step 6: Final answer
    x = 399,082.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.