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Finding the Fourth Proportional to 535,203.40, 802,805.10 and 219,886.60

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Solution

The fourth proportional to 535,203.40, 802,805.10 and 219,886.60 is: 329,829.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,203.40 : 802,805.10 = 219,886.60 : x
  2. Step 2: Convert to fraction form
    535,203.40/802,805.10 = 219,886.60/x
  3. Step 3: Cross multiply
    535,203.40x = 802,805.10 × 219,886.60
  4. Step 4: Simplify right side
    535,203.40x = 176,526,083,901.66
  5. Step 5: Solve for x
    x = 176,526,083,901.66/535,203.40
  6. Step 6: Final answer
    x = 329,829.90

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Similar ratio
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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.