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Finding the Fourth Proportional to 430,309.32, 593,818.42 and 239,318.60

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Solution

The fourth proportional to 430,309.32, 593,818.42 and 239,318.60 is: 330,254.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,309.32 : 593,818.42 = 239,318.60 : x
  2. Step 2: Convert to fraction form
    430,309.32/593,818.42 = 239,318.60/x
  3. Step 3: Cross multiply
    430,309.32x = 593,818.42 × 239,318.60
  4. Step 4: Simplify right side
    430,309.32x = 142,111,792,928.61
  5. Step 5: Solve for x
    x = 142,111,792,928.61/430,309.32
  6. Step 6: Final answer
    x = 330,254.97

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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.