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Finding the Fourth Proportional to 387,878.06, 535,424.19 and 244,609.58

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Solution

The fourth proportional to 387,878.06, 535,424.19 and 244,609.58 is: 337,657.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,878.06 : 535,424.19 = 244,609.58 : x
  2. Step 2: Convert to fraction form
    387,878.06/535,424.19 = 244,609.58/x
  3. Step 3: Cross multiply
    387,878.06x = 535,424.19 × 244,609.58
  4. Step 4: Simplify right side
    387,878.06x = 130,969,886,237.74
  5. Step 5: Solve for x
    x = 130,969,886,237.74/387,878.06
  6. Step 6: Final answer
    x = 337,657.37

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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.