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Finding the Fourth Proportional to 616,528.80, 925,743.60 and 336,592.80

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Solution

The fourth proportional to 616,528.80, 925,743.60 and 336,592.80 is: 505,408.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,528.80 : 925,743.60 = 336,592.80 : x
  2. Step 2: Convert to fraction form
    616,528.80/925,743.60 = 336,592.80/x
  3. Step 3: Cross multiply
    616,528.80x = 925,743.60 × 336,592.80
  4. Step 4: Simplify right side
    616,528.80x = 311,598,630,406.08
  5. Step 5: Solve for x
    x = 311,598,630,406.08/616,528.80
  6. Step 6: Final answer
    x = 505,408.07

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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.