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Finding the Fourth Proportional to 468,667.81, 646,760.59 and 253,807.21

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Solution

The fourth proportional to 468,667.81, 646,760.59 and 253,807.21 is: 350,253.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,667.81 : 646,760.59 = 253,807.21 : x
  2. Step 2: Convert to fraction form
    468,667.81/646,760.59 = 253,807.21/x
  3. Step 3: Cross multiply
    468,667.81x = 646,760.59 × 253,807.21
  4. Step 4: Simplify right side
    468,667.81x = 164,152,500,885.85
  5. Step 5: Solve for x
    x = 164,152,500,885.85/468,667.81
  6. Step 6: Final answer
    x = 350,253.41

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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.