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Finding the Fourth Proportional to 468,486.48, 646,511.20 and 253,626.40

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Solution

The fourth proportional to 468,486.48, 646,511.20 and 253,626.40 is: 350,004.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,486.48 : 646,511.20 = 253,626.40 : x
  2. Step 2: Convert to fraction form
    468,486.48/646,511.20 = 253,626.40/x
  3. Step 3: Cross multiply
    468,486.48x = 646,511.20 × 253,626.40
  4. Step 4: Simplify right side
    468,486.48x = 163,972,308,215.68
  5. Step 5: Solve for x
    x = 163,972,308,215.68/468,486.48
  6. Step 6: Final answer
    x = 350,004.35

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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.