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Finding the Fourth Proportional to 576,616.70, 864,923 and 155,892.50

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Solution

The fourth proportional to 576,616.70, 864,923 and 155,892.50 is: 233,838.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,616.70 : 864,923 = 155,892.50 : x
  2. Step 2: Convert to fraction form
    576,616.70/864,923 = 155,892.50/x
  3. Step 3: Cross multiply
    576,616.70x = 864,923 × 155,892.50
  4. Step 4: Simplify right side
    576,616.70x = 134,835,008,777.50
  5. Step 5: Solve for x
    x = 134,835,008,777.50/576,616.70
  6. Step 6: Final answer
    x = 233,838.20

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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.