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Finding the Fourth Proportional to 857,713, 1,182,869.40 and 535,452.88

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Solution

The fourth proportional to 857,713, 1,182,869.40 and 535,452.88 is: 738,441.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,713 : 1,182,869.40 = 535,452.88 : x
  2. Step 2: Convert to fraction form
    857,713/1,182,869.40 = 535,452.88/x
  3. Step 3: Cross multiply
    857,713x = 1,182,869.40 × 535,452.88
  4. Step 4: Simplify right side
    857,713x = 633,370,826,893.87
  5. Step 5: Solve for x
    x = 633,370,826,893.87/857,713
  6. Step 6: Final answer
    x = 738,441.44

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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.