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Finding the Fourth Proportional to 614,627.85, 848,124.45 and 342,670.17

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Solution

The fourth proportional to 614,627.85, 848,124.45 and 342,670.17 is: 472,850.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,627.85 : 848,124.45 = 342,670.17 : x
  2. Step 2: Convert to fraction form
    614,627.85/848,124.45 = 342,670.17/x
  3. Step 3: Cross multiply
    614,627.85x = 848,124.45 × 342,670.17
  4. Step 4: Simplify right side
    614,627.85x = 290,626,949,462.66
  5. Step 5: Solve for x
    x = 290,626,949,462.66/614,627.85
  6. Step 6: Final answer
    x = 472,850.28

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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.