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Finding the Fourth Proportional to 348,528.30, 522,792.45 and 345,903.90

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Solution

The fourth proportional to 348,528.30, 522,792.45 and 345,903.90 is: 518,855.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,528.30 : 522,792.45 = 345,903.90 : x
  2. Step 2: Convert to fraction form
    348,528.30/522,792.45 = 345,903.90/x
  3. Step 3: Cross multiply
    348,528.30x = 522,792.45 × 345,903.90
  4. Step 4: Simplify right side
    348,528.30x = 180,835,947,345.56
  5. Step 5: Solve for x
    x = 180,835,947,345.56/348,528.30
  6. Step 6: Final answer
    x = 518,855.85

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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.