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Finding the Fourth Proportional to 557,647.26, 835,348.23 and 257,714.79

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Solution

The fourth proportional to 557,647.26, 835,348.23 and 257,714.79 is: 386,053.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,647.26 : 835,348.23 = 257,714.79 : x
  2. Step 2: Convert to fraction form
    557,647.26/835,348.23 = 257,714.79/x
  3. Step 3: Cross multiply
    557,647.26x = 835,348.23 × 257,714.79
  4. Step 4: Simplify right side
    557,647.26x = 215,281,593,671.32
  5. Step 5: Solve for x
    x = 215,281,593,671.32/557,647.26
  6. Step 6: Final answer
    x = 386,053.35

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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.