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Finding the Fourth Proportional to 376,803.20, 565,204.80 and 326,064.80

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Solution

The fourth proportional to 376,803.20, 565,204.80 and 326,064.80 is: 489,097.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,803.20 : 565,204.80 = 326,064.80 : x
  2. Step 2: Convert to fraction form
    376,803.20/565,204.80 = 326,064.80/x
  3. Step 3: Cross multiply
    376,803.20x = 565,204.80 × 326,064.80
  4. Step 4: Simplify right side
    376,803.20x = 184,293,390,071.04
  5. Step 5: Solve for x
    x = 184,293,390,071.04/376,803.20
  6. Step 6: Final answer
    x = 489,097.20

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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.