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Finding the Fourth Proportional to 493,793.51, 681,432.93 and 276,001.89

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Solution

The fourth proportional to 493,793.51, 681,432.93 and 276,001.89 is: 380,881.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,793.51 : 681,432.93 = 276,001.89 : x
  2. Step 2: Convert to fraction form
    493,793.51/681,432.93 = 276,001.89/x
  3. Step 3: Cross multiply
    493,793.51x = 681,432.93 × 276,001.89
  4. Step 4: Simplify right side
    493,793.51x = 188,076,776,588.24
  5. Step 5: Solve for x
    x = 188,076,776,588.24/493,793.51
  6. Step 6: Final answer
    x = 380,881.43

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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.