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Finding the Fourth Proportional to 475,012.80, 713,037.60 and 265,060.80

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Solution

The fourth proportional to 475,012.80, 713,037.60 and 265,060.80 is: 397,880.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,012.80 : 713,037.60 = 265,060.80 : x
  2. Step 2: Convert to fraction form
    475,012.80/713,037.60 = 265,060.80/x
  3. Step 3: Cross multiply
    475,012.80x = 713,037.60 × 265,060.80
  4. Step 4: Simplify right side
    475,012.80x = 188,998,316,686.08
  5. Step 5: Solve for x
    x = 188,998,316,686.08/475,012.80
  6. Step 6: Final answer
    x = 397,880.47

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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.