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Finding the Fourth Proportional to 621,241.88, 857,107.60 and 506,322.92

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Solution

The fourth proportional to 621,241.88, 857,107.60 and 506,322.92 is: 698,557.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,241.88 : 857,107.60 = 506,322.92 : x
  2. Step 2: Convert to fraction form
    621,241.88/857,107.60 = 506,322.92/x
  3. Step 3: Cross multiply
    621,241.88x = 857,107.60 × 506,322.92
  4. Step 4: Simplify right side
    621,241.88x = 433,973,222,786.19
  5. Step 5: Solve for x
    x = 433,973,222,786.19/621,241.88
  6. Step 6: Final answer
    x = 698,557.58

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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.