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Finding the Fourth Proportional to 557,920.98, 759,630.71 and 556,149.51

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Solution

The fourth proportional to 557,920.98, 759,630.71 and 556,149.51 is: 757,218.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,920.98 : 759,630.71 = 556,149.51 : x
  2. Step 2: Convert to fraction form
    557,920.98/759,630.71 = 556,149.51/x
  3. Step 3: Cross multiply
    557,920.98x = 759,630.71 × 556,149.51
  4. Step 4: Simplify right side
    557,920.98x = 422,468,241,958.93
  5. Step 5: Solve for x
    x = 422,468,241,958.93/557,920.98
  6. Step 6: Final answer
    x = 757,218.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.