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Finding the Fourth Proportional to 538,859.90, 808,213.05 and 183,890.30

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Solution

The fourth proportional to 538,859.90, 808,213.05 and 183,890.30 is: 275,809.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,859.90 : 808,213.05 = 183,890.30 : x
  2. Step 2: Convert to fraction form
    538,859.90/808,213.05 = 183,890.30/x
  3. Step 3: Cross multiply
    538,859.90x = 808,213.05 × 183,890.30
  4. Step 4: Simplify right side
    538,859.90x = 148,622,540,228.42
  5. Step 5: Solve for x
    x = 148,622,540,228.42/538,859.90
  6. Step 6: Final answer
    x = 275,809.24

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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.