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Finding the Fourth Proportional to 612,953.28, 919,546.56 and 192,116.16

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Solution

The fourth proportional to 612,953.28, 919,546.56 and 192,116.16 is: 288,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,953.28 : 919,546.56 = 192,116.16 : x
  2. Step 2: Convert to fraction form
    612,953.28/919,546.56 = 192,116.16/x
  3. Step 3: Cross multiply
    612,953.28x = 919,546.56 × 192,116.16
  4. Step 4: Simplify right side
    612,953.28x = 176,659,754,048.41
  5. Step 5: Solve for x
    x = 176,659,754,048.41/612,953.28
  6. Step 6: Final answer
    x = 288,210.80

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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.