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Finding the Fourth Proportional to 430,383.48, 593,920.46 and 239,392.76

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Solution

The fourth proportional to 430,383.48, 593,920.46 and 239,392.76 is: 330,357.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,383.48 : 593,920.46 = 239,392.76 : x
  2. Step 2: Convert to fraction form
    430,383.48/593,920.46 = 239,392.76/x
  3. Step 3: Cross multiply
    430,383.48x = 593,920.46 × 239,392.76
  4. Step 4: Simplify right side
    430,383.48x = 142,180,258,139.87
  5. Step 5: Solve for x
    x = 142,180,258,139.87/430,383.48
  6. Step 6: Final answer
    x = 330,357.15

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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.