Home / 384,436.03-530,519.61-212,365.84

Finding the Fourth Proportional to 384,436.03, 530,519.61 and 212,365.84

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Solution

The fourth proportional to 384,436.03, 530,519.61 and 212,365.84 is: 293,063.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,436.03 : 530,519.61 = 212,365.84 : x
  2. Step 2: Convert to fraction form
    384,436.03/530,519.61 = 212,365.84/x
  3. Step 3: Cross multiply
    384,436.03x = 530,519.61 × 212,365.84
  4. Step 4: Simplify right side
    384,436.03x = 112,664,242,614.12
  5. Step 5: Solve for x
    x = 112,664,242,614.12/384,436.03
  6. Step 6: Final answer
    x = 293,063.69

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1.5x scale

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.