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Finding the Fourth Proportional to 465,793.40, 698,690.10 and 170,420.60

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Solution

The fourth proportional to 465,793.40, 698,690.10 and 170,420.60 is: 255,630.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,793.40 : 698,690.10 = 170,420.60 : x
  2. Step 2: Convert to fraction form
    465,793.40/698,690.10 = 170,420.60/x
  3. Step 3: Cross multiply
    465,793.40x = 698,690.10 × 170,420.60
  4. Step 4: Simplify right side
    465,793.40x = 119,071,186,056.06
  5. Step 5: Solve for x
    x = 119,071,186,056.06/465,793.40
  6. Step 6: Final answer
    x = 255,630.90

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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.