Home / 638,530.17-958,418.55-527,343.09

Finding the Fourth Proportional to 638,530.17, 958,418.55 and 527,343.09

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Solution

The fourth proportional to 638,530.17, 958,418.55 and 527,343.09 is: 791,529.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,530.17 : 958,418.55 = 527,343.09 : x
  2. Step 2: Convert to fraction form
    638,530.17/958,418.55 = 527,343.09/x
  3. Step 3: Cross multiply
    638,530.17x = 958,418.55 × 527,343.09
  4. Step 4: Simplify right side
    638,530.17x = 505,415,399,670.32
  5. Step 5: Solve for x
    x = 505,415,399,670.32/638,530.17
  6. Step 6: Final answer
    x = 791,529.40

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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.