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Finding the Fourth Proportional to 626,993.64, 865,325.08 and 372,344.82

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Solution

The fourth proportional to 626,993.64, 865,325.08 and 372,344.82 is: 513,879.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,993.64 : 865,325.08 = 372,344.82 : x
  2. Step 2: Convert to fraction form
    626,993.64/865,325.08 = 372,344.82/x
  3. Step 3: Cross multiply
    626,993.64x = 865,325.08 × 372,344.82
  4. Step 4: Simplify right side
    626,993.64x = 322,199,311,154.09
  5. Step 5: Solve for x
    x = 322,199,311,154.09/626,993.64
  6. Step 6: Final answer
    x = 513,879.71

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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.