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Finding the Fourth Proportional to 4,387,907.80, 6,570,051.90 and 4,387,907.80

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Solution

The fourth proportional to 4,387,907.80, 6,570,051.90 and 4,387,907.80 is: 6,570,051.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,387,907.80 : 6,570,051.90 = 4,387,907.80 : x
  2. Step 2: Convert to fraction form
    4,387,907.80/6,570,051.90 = 4,387,907.80/x
  3. Step 3: Cross multiply
    4,387,907.80x = 6,570,051.90 × 4,387,907.80
  4. Step 4: Simplify right side
    4,387,907.80x = 28,828,781,978,414.82
  5. Step 5: Solve for x
    x = 28,828,781,978,414.82/4,387,907.80
  6. Step 6: Final answer
    x = 6,570,051.90

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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.