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Finding the Fourth Proportional to 219,315.80, 328,973.70 and 181,918.10

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Solution

The fourth proportional to 219,315.80, 328,973.70 and 181,918.10 is: 272,877.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,315.80 : 328,973.70 = 181,918.10 : x
  2. Step 2: Convert to fraction form
    219,315.80/328,973.70 = 181,918.10/x
  3. Step 3: Cross multiply
    219,315.80x = 328,973.70 × 181,918.10
  4. Step 4: Simplify right side
    219,315.80x = 59,846,270,453.97
  5. Step 5: Solve for x
    x = 59,846,270,453.97/219,315.80
  6. Step 6: Final answer
    x = 272,877.15

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1.5x scale

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.