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Finding the Fourth Proportional to 346,375.60, 518,526.60 and 309,050.80

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Solution

The fourth proportional to 346,375.60, 518,526.60 and 309,050.80 is: 462,651.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,375.60 : 518,526.60 = 309,050.80 : x
  2. Step 2: Convert to fraction form
    346,375.60/518,526.60 = 309,050.80/x
  3. Step 3: Cross multiply
    346,375.60x = 518,526.60 × 309,050.80
  4. Step 4: Simplify right side
    346,375.60x = 160,251,060,551.28
  5. Step 5: Solve for x
    x = 160,251,060,551.28/346,375.60
  6. Step 6: Final answer
    x = 462,651.12

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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.