Home / 638,515.36-958,396.34-527,328.28

Finding the Fourth Proportional to 638,515.36, 958,396.34 and 527,328.28

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Solution

The fourth proportional to 638,515.36, 958,396.34 and 527,328.28 is: 791,507.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,515.36 : 958,396.34 = 527,328.28 : x
  2. Step 2: Convert to fraction form
    638,515.36/958,396.34 = 527,328.28/x
  3. Step 3: Cross multiply
    638,515.36x = 958,396.34 × 527,328.28
  4. Step 4: Simplify right side
    638,515.36x = 505,389,493,530.50
  5. Step 5: Solve for x
    x = 505,389,493,530.50/638,515.36
  6. Step 6: Final answer
    x = 791,507.18

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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.