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Finding the Fourth Proportional to 560,785.26, 773,886.81 and 319,067.83

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Solution

The fourth proportional to 560,785.26, 773,886.81 and 319,067.83 is: 440,315.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,785.26 : 773,886.81 = 319,067.83 : x
  2. Step 2: Convert to fraction form
    560,785.26/773,886.81 = 319,067.83/x
  3. Step 3: Cross multiply
    560,785.26x = 773,886.81 × 319,067.83
  4. Step 4: Simplify right side
    560,785.26x = 246,922,385,501.43
  5. Step 5: Solve for x
    x = 246,922,385,501.43/560,785.26
  6. Step 6: Final answer
    x = 440,315.40

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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.