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Finding the Fourth Proportional to 609,278.12, 840,803.70 and 341,006.12

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Solution

The fourth proportional to 609,278.12, 840,803.70 and 341,006.12 is: 470,588.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,278.12 : 840,803.70 = 341,006.12 : x
  2. Step 2: Convert to fraction form
    609,278.12/840,803.70 = 341,006.12/x
  3. Step 3: Cross multiply
    609,278.12x = 840,803.70 × 341,006.12
  4. Step 4: Simplify right side
    609,278.12x = 286,719,207,418.64
  5. Step 5: Solve for x
    x = 286,719,207,418.64/609,278.12
  6. Step 6: Final answer
    x = 470,588.39

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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.