Home / 628,960.14-867,941.30-384,353.91

Finding the Fourth Proportional to 628,960.14, 867,941.30 and 384,353.91

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Solution

The fourth proportional to 628,960.14, 867,941.30 and 384,353.91 is: 530,393.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,960.14 : 867,941.30 = 384,353.91 : x
  2. Step 2: Convert to fraction form
    628,960.14/867,941.30 = 384,353.91/x
  3. Step 3: Cross multiply
    628,960.14x = 867,941.30 × 384,353.91
  4. Step 4: Simplify right side
    628,960.14x = 333,596,633,266.37
  5. Step 5: Solve for x
    x = 333,596,633,266.37/628,960.14
  6. Step 6: Final answer
    x = 530,393.92

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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.