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Finding the Fourth Proportional to 370,819.80, 556,229.70 and 230,851.80

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Solution

The fourth proportional to 370,819.80, 556,229.70 and 230,851.80 is: 346,277.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,819.80 : 556,229.70 = 230,851.80 : x
  2. Step 2: Convert to fraction form
    370,819.80/556,229.70 = 230,851.80/x
  3. Step 3: Cross multiply
    370,819.80x = 556,229.70 × 230,851.80
  4. Step 4: Simplify right side
    370,819.80x = 128,406,627,458.46
  5. Step 5: Solve for x
    x = 128,406,627,458.46/370,819.80
  6. Step 6: Final answer
    x = 346,277.70

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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.