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Finding the Fourth Proportional to 295,341.80, 443,012.70 and 253,869.80

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Solution

The fourth proportional to 295,341.80, 443,012.70 and 253,869.80 is: 380,804.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,341.80 : 443,012.70 = 253,869.80 : x
  2. Step 2: Convert to fraction form
    295,341.80/443,012.70 = 253,869.80/x
  3. Step 3: Cross multiply
    295,341.80x = 443,012.70 × 253,869.80
  4. Step 4: Simplify right side
    295,341.80x = 112,467,545,546.46
  5. Step 5: Solve for x
    x = 112,467,545,546.46/295,341.80
  6. Step 6: Final answer
    x = 380,804.70

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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.