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Finding the Fourth Proportional to 591,272.40, 886,908.60 and 545,653.20

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Solution

The fourth proportional to 591,272.40, 886,908.60 and 545,653.20 is: 818,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,272.40 : 886,908.60 = 545,653.20 : x
  2. Step 2: Convert to fraction form
    591,272.40/886,908.60 = 545,653.20/x
  3. Step 3: Cross multiply
    591,272.40x = 886,908.60 × 545,653.20
  4. Step 4: Simplify right side
    591,272.40x = 483,944,515,697.52
  5. Step 5: Solve for x
    x = 483,944,515,697.52/591,272.40
  6. Step 6: Final answer
    x = 818,479.80

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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.