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Finding the Fourth Proportional to 570,907.80, 856,580.40 and 561,941.10

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Solution

The fourth proportional to 570,907.80, 856,580.40 and 561,941.10 is: 843,126.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,907.80 : 856,580.40 = 561,941.10 : x
  2. Step 2: Convert to fraction form
    570,907.80/856,580.40 = 561,941.10/x
  3. Step 3: Cross multiply
    570,907.80x = 856,580.40 × 561,941.10
  4. Step 4: Simplify right side
    570,907.80x = 481,347,732,214.44
  5. Step 5: Solve for x
    x = 481,347,732,214.44/570,907.80
  6. Step 6: Final answer
    x = 843,126.92

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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.