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Finding the Fourth Proportional to 480,665.28, 720,935.34 and 125,706.67

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Solution

The fourth proportional to 480,665.28, 720,935.34 and 125,706.67 is: 188,543.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,665.28 : 720,935.34 = 125,706.67 : x
  2. Step 2: Convert to fraction form
    480,665.28/720,935.34 = 125,706.67/x
  3. Step 3: Cross multiply
    480,665.28x = 720,935.34 × 125,706.67
  4. Step 4: Simplify right side
    480,665.28x = 90,626,380,876.72
  5. Step 5: Solve for x
    x = 90,626,380,876.72/480,665.28
  6. Step 6: Final answer
    x = 188,543.64

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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.