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Finding the Fourth Proportional to 614,908.62, 848,345.16 and 356,640.75

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Solution

The fourth proportional to 614,908.62, 848,345.16 and 356,640.75 is: 492,031.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,908.62 : 848,345.16 = 356,640.75 : x
  2. Step 2: Convert to fraction form
    614,908.62/848,345.16 = 356,640.75/x
  3. Step 3: Cross multiply
    614,908.62x = 848,345.16 × 356,640.75
  4. Step 4: Simplify right side
    614,908.62x = 302,554,454,121.27
  5. Step 5: Solve for x
    x = 302,554,454,121.27/614,908.62
  6. Step 6: Final answer
    x = 492,031.57

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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.