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Finding the Fourth Proportional to 557,191.44, 835,928.64 and 257,887.80

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Solution

The fourth proportional to 557,191.44, 835,928.64 and 257,887.80 is: 386,897.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,191.44 : 835,928.64 = 257,887.80 : x
  2. Step 2: Convert to fraction form
    557,191.44/835,928.64 = 257,887.80/x
  3. Step 3: Cross multiply
    557,191.44x = 835,928.64 × 257,887.80
  4. Step 4: Simplify right side
    557,191.44x = 215,575,797,926.59
  5. Step 5: Solve for x
    x = 215,575,797,926.59/557,191.44
  6. Step 6: Final answer
    x = 386,897.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.