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Finding the Fourth Proportional to 457,072.80, 684,442.80 and 363,760.80

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Solution

The fourth proportional to 457,072.80, 684,442.80 and 363,760.80 is: 544,712.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,072.80 : 684,442.80 = 363,760.80 : x
  2. Step 2: Convert to fraction form
    457,072.80/684,442.80 = 363,760.80/x
  3. Step 3: Cross multiply
    457,072.80x = 684,442.80 × 363,760.80
  4. Step 4: Simplify right side
    457,072.80x = 248,973,460,482.24
  5. Step 5: Solve for x
    x = 248,973,460,482.24/457,072.80
  6. Step 6: Final answer
    x = 544,712.92

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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.