Home / 638,853.35-958,870.51-323,531.69

Finding the Fourth Proportional to 638,853.35, 958,870.51 and 323,531.69

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Solution

The fourth proportional to 638,853.35, 958,870.51 and 323,531.69 is: 485,596.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,853.35 : 958,870.51 = 323,531.69 : x
  2. Step 2: Convert to fraction form
    638,853.35/958,870.51 = 323,531.69/x
  3. Step 3: Cross multiply
    638,853.35x = 958,870.51 × 323,531.69
  4. Step 4: Simplify right side
    638,853.35x = 310,224,990,988.28
  5. Step 5: Solve for x
    x = 310,224,990,988.28/638,853.35
  6. Step 6: Final answer
    x = 485,596.57

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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.