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Finding the Fourth Proportional to 614,679.66, 848,369.97 and 356,721.66

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Solution

The fourth proportional to 614,679.66, 848,369.97 and 356,721.66 is: 492,340.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,679.66 : 848,369.97 = 356,721.66 : x
  2. Step 2: Convert to fraction form
    614,679.66/848,369.97 = 356,721.66/x
  3. Step 3: Cross multiply
    614,679.66x = 848,369.97 × 356,721.66
  4. Step 4: Simplify right side
    614,679.66x = 302,631,943,992.55
  5. Step 5: Solve for x
    x = 302,631,943,992.55/614,679.66
  6. Step 6: Final answer
    x = 492,340.91

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1.5x scale

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.