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Finding the Fourth Proportional to 366,907.80, 512,565 and 366,907.80

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Solution

The fourth proportional to 366,907.80, 512,565 and 366,907.80 is: 512,565

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,907.80 : 512,565 = 366,907.80 : x
  2. Step 2: Convert to fraction form
    366,907.80/512,565 = 366,907.80/x
  3. Step 3: Cross multiply
    366,907.80x = 512,565 × 366,907.80
  4. Step 4: Simplify right side
    366,907.80x = 188,064,096,507
  5. Step 5: Solve for x
    x = 188,064,096,507/366,907.80
  6. Step 6: Final answer
    x = 512,565

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.