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Finding the Fourth Proportional to 468,295.40, 646,247.63 and 253,435.46

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Solution

The fourth proportional to 468,295.40, 646,247.63 and 253,435.46 is: 349,740.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,295.40 : 646,247.63 = 253,435.46 : x
  2. Step 2: Convert to fraction form
    468,295.40/646,247.63 = 253,435.46/x
  3. Step 3: Cross multiply
    468,295.40x = 646,247.63 × 253,435.46
  4. Step 4: Simplify right side
    468,295.40x = 163,782,060,884.54
  5. Step 5: Solve for x
    x = 163,782,060,884.54/468,295.40
  6. Step 6: Final answer
    x = 349,740.92

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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.