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Finding the Fourth Proportional to 612,960.14, 919,440.18 and 169,728.14

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Solution

The fourth proportional to 612,960.14, 919,440.18 and 169,728.14 is: 254,592.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,960.14 : 919,440.18 = 169,728.14 : x
  2. Step 2: Convert to fraction form
    612,960.14/919,440.18 = 169,728.14/x
  3. Step 3: Cross multiply
    612,960.14x = 919,440.18 × 169,728.14
  4. Step 4: Simplify right side
    612,960.14x = 156,054,871,592.67
  5. Step 5: Solve for x
    x = 156,054,871,592.67/612,960.14
  6. Step 6: Final answer
    x = 254,592.20

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Similar ratio
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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.