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Finding the Fourth Proportional to 384,434.00, 530,516.81 and 212,363.80

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Solution

The fourth proportional to 384,434.00, 530,516.81 and 212,363.80 is: 293,060.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,434.00 : 530,516.81 = 212,363.80 : x
  2. Step 2: Convert to fraction form
    384,434.00/530,516.81 = 212,363.80/x
  3. Step 3: Cross multiply
    384,434.00x = 530,516.81 × 212,363.80
  4. Step 4: Simplify right side
    384,434.00x = 112,662,564,673.66
  5. Step 5: Solve for x
    x = 112,662,564,673.66/384,434.00
  6. Step 6: Final answer
    x = 293,060.88

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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.