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Finding the Fourth Proportional to 464,068.80, 696,103.20 and 345,970.80

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Solution

The fourth proportional to 464,068.80, 696,103.20 and 345,970.80 is: 518,956.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,068.80 : 696,103.20 = 345,970.80 : x
  2. Step 2: Convert to fraction form
    464,068.80/696,103.20 = 345,970.80/x
  3. Step 3: Cross multiply
    464,068.80x = 696,103.20 × 345,970.80
  4. Step 4: Simplify right side
    464,068.80x = 240,831,380,986.56
  5. Step 5: Solve for x
    x = 240,831,380,986.56/464,068.80
  6. Step 6: Final answer
    x = 518,956.20

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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.