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Finding the Fourth Proportional to 468,674.40, 646,762.68 and 253,812.72

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Solution

The fourth proportional to 468,674.40, 646,762.68 and 253,812.72 is: 350,257.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,674.40 : 646,762.68 = 253,812.72 : x
  2. Step 2: Convert to fraction form
    468,674.40/646,762.68 = 253,812.72/x
  3. Step 3: Cross multiply
    468,674.40x = 646,762.68 × 253,812.72
  4. Step 4: Simplify right side
    468,674.40x = 164,156,595,005.29
  5. Step 5: Solve for x
    x = 164,156,595,005.29/468,674.40
  6. Step 6: Final answer
    x = 350,257.23

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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.