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Finding the Fourth Proportional to 535,706.37, 803,533.52 and 198,812.64

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Solution

The fourth proportional to 535,706.37, 803,533.52 and 198,812.64 is: 298,209.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,706.37 : 803,533.52 = 198,812.64 : x
  2. Step 2: Convert to fraction form
    535,706.37/803,533.52 = 198,812.64/x
  3. Step 3: Cross multiply
    535,706.37x = 803,533.52 × 198,812.64
  4. Step 4: Simplify right side
    535,706.37x = 159,752,619,445.63
  5. Step 5: Solve for x
    x = 159,752,619,445.63/535,706.37
  6. Step 6: Final answer
    x = 298,209.30

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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.