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Finding the Fourth Proportional to 296,612.72, 444,848.51 and 128,040.81

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Solution

The fourth proportional to 296,612.72, 444,848.51 and 128,040.81 is: 192,030.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,612.72 : 444,848.51 = 128,040.81 : x
  2. Step 2: Convert to fraction form
    296,612.72/444,848.51 = 128,040.81/x
  3. Step 3: Cross multiply
    296,612.72x = 444,848.51 × 128,040.81
  4. Step 4: Simplify right side
    296,612.72x = 56,958,761,323.45
  5. Step 5: Solve for x
    x = 56,958,761,323.45/296,612.72
  6. Step 6: Final answer
    x = 192,030.75

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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.