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Finding the Fourth Proportional to 609,319.78, 840,870.18 and 351,054.22

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Solution

The fourth proportional to 609,319.78, 840,870.18 and 351,054.22 is: 484,459.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,319.78 : 840,870.18 = 351,054.22 : x
  2. Step 2: Convert to fraction form
    609,319.78/840,870.18 = 351,054.22/x
  3. Step 3: Cross multiply
    609,319.78x = 840,870.18 × 351,054.22
  4. Step 4: Simplify right side
    609,319.78x = 295,191,025,161.16
  5. Step 5: Solve for x
    x = 295,191,025,161.16/609,319.78
  6. Step 6: Final answer
    x = 484,459.94

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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.