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Finding the Fourth Proportional to 368,518.42, 508,300.95 and 225,348.94

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Solution

The fourth proportional to 368,518.42, 508,300.95 and 225,348.94 is: 310,825.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,518.42 : 508,300.95 = 225,348.94 : x
  2. Step 2: Convert to fraction form
    368,518.42/508,300.95 = 225,348.94/x
  3. Step 3: Cross multiply
    368,518.42x = 508,300.95 × 225,348.94
  4. Step 4: Simplify right side
    368,518.42x = 114,545,080,283.49
  5. Step 5: Solve for x
    x = 114,545,080,283.49/368,518.42
  6. Step 6: Final answer
    x = 310,825.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.