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Finding the Fourth Proportional to 535,316.40, 802,974.60 and 219,999.60

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Solution

The fourth proportional to 535,316.40, 802,974.60 and 219,999.60 is: 329,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,316.40 : 802,974.60 = 219,999.60 : x
  2. Step 2: Convert to fraction form
    535,316.40/802,974.60 = 219,999.60/x
  3. Step 3: Cross multiply
    535,316.40x = 802,974.60 × 219,999.60
  4. Step 4: Simplify right side
    535,316.40x = 176,654,090,810.16
  5. Step 5: Solve for x
    x = 176,654,090,810.16/535,316.40
  6. Step 6: Final answer
    x = 329,999.40

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Similar ratio
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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.