Home / 384,710.28-530,883.66-212,619.35

Finding the Fourth Proportional to 384,710.28, 530,883.66 and 212,619.35

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Solution

The fourth proportional to 384,710.28, 530,883.66 and 212,619.35 is: 293,405.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,710.28 : 530,883.66 = 212,619.35 : x
  2. Step 2: Convert to fraction form
    384,710.28/530,883.66 = 212,619.35/x
  3. Step 3: Cross multiply
    384,710.28x = 530,883.66 × 212,619.35
  4. Step 4: Simplify right side
    384,710.28x = 112,876,136,657.15
  5. Step 5: Solve for x
    x = 112,876,136,657.15/384,710.28
  6. Step 6: Final answer
    x = 293,405.57

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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.