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Finding the Fourth Proportional to 519,265.40, 778,817.10 and 164,366.60

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Solution

The fourth proportional to 519,265.40, 778,817.10 and 164,366.60 is: 246,524.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,265.40 : 778,817.10 = 164,366.60 : x
  2. Step 2: Convert to fraction form
    519,265.40/778,817.10 = 164,366.60/x
  3. Step 3: Cross multiply
    519,265.40x = 778,817.10 × 164,366.60
  4. Step 4: Simplify right side
    519,265.40x = 128,011,518,748.86
  5. Step 5: Solve for x
    x = 128,011,518,748.86/519,265.40
  6. Step 6: Final answer
    x = 246,524.26

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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.