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Finding the Fourth Proportional to 373,830.13, 515,875.67 and 343,737.01

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Solution

The fourth proportional to 373,830.13, 515,875.67 and 343,737.01 is: 474,347.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,830.13 : 515,875.67 = 343,737.01 : x
  2. Step 2: Convert to fraction form
    373,830.13/515,875.67 = 343,737.01/x
  3. Step 3: Cross multiply
    373,830.13x = 515,875.67 × 343,737.01
  4. Step 4: Simplify right side
    373,830.13x = 177,325,558,618.86
  5. Step 5: Solve for x
    x = 177,325,558,618.86/373,830.13
  6. Step 6: Final answer
    x = 474,347.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.