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Finding the Fourth Proportional to 468,813.29, 646,965.45 and 253,953.36

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Solution

The fourth proportional to 468,813.29, 646,965.45 and 253,953.36 is: 350,457.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,813.29 : 646,965.45 = 253,953.36 : x
  2. Step 2: Convert to fraction form
    468,813.29/646,965.45 = 253,953.36/x
  3. Step 3: Cross multiply
    468,813.29x = 646,965.45 × 253,953.36
  4. Step 4: Simplify right side
    468,813.29x = 164,299,049,831.41
  5. Step 5: Solve for x
    x = 164,299,049,831.41/468,813.29
  6. Step 6: Final answer
    x = 350,457.33

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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.