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Finding the Fourth Proportional to 416,846.81, 575,446.94 and 279,262.64

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Solution

The fourth proportional to 416,846.81, 575,446.94 and 279,262.64 is: 385,515.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,846.81 : 575,446.94 = 279,262.64 : x
  2. Step 2: Convert to fraction form
    416,846.81/575,446.94 = 279,262.64/x
  3. Step 3: Cross multiply
    416,846.81x = 575,446.94 × 279,262.64
  4. Step 4: Simplify right side
    416,846.81x = 160,700,827,370.77
  5. Step 5: Solve for x
    x = 160,700,827,370.77/416,846.81
  6. Step 6: Final answer
    x = 385,515.32

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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.