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Finding the Fourth Proportional to 536,364.48, 804,878.96 and 311,830.60

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Solution

The fourth proportional to 536,364.48, 804,878.96 and 311,830.60 is: 467,939.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,364.48 : 804,878.96 = 311,830.60 : x
  2. Step 2: Convert to fraction form
    536,364.48/804,878.96 = 311,830.60/x
  3. Step 3: Cross multiply
    536,364.48x = 804,878.96 × 311,830.60
  4. Step 4: Simplify right side
    536,364.48x = 250,985,889,024.18
  5. Step 5: Solve for x
    x = 250,985,889,024.18/536,364.48
  6. Step 6: Final answer
    x = 467,939.06

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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.