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Finding the Fourth Proportional to 583,237.80, 872,523.90 and 505,218.60

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Solution

The fourth proportional to 583,237.80, 872,523.90 and 505,218.60 is: 755,807.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,237.80 : 872,523.90 = 505,218.60 : x
  2. Step 2: Convert to fraction form
    583,237.80/872,523.90 = 505,218.60/x
  3. Step 3: Cross multiply
    583,237.80x = 872,523.90 × 505,218.60
  4. Step 4: Simplify right side
    583,237.80x = 440,815,303,224.54
  5. Step 5: Solve for x
    x = 440,815,303,224.54/583,237.80
  6. Step 6: Final answer
    x = 755,807.16

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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.