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Finding the Fourth Proportional to 638,496.54, 957,717.09 and 158,714.19

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Solution

The fourth proportional to 638,496.54, 957,717.09 and 158,714.19 is: 238,064.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,496.54 : 957,717.09 = 158,714.19 : x
  2. Step 2: Convert to fraction form
    638,496.54/957,717.09 = 158,714.19/x
  3. Step 3: Cross multiply
    638,496.54x = 957,717.09 × 158,714.19
  4. Step 4: Simplify right side
    638,496.54x = 152,003,292,188.51
  5. Step 5: Solve for x
    x = 152,003,292,188.51/638,496.54
  6. Step 6: Final answer
    x = 238,064.39

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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.