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Finding the Fourth Proportional to 468,765.12, 646,894.68 and 253,905.72

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Solution

The fourth proportional to 468,765.12, 646,894.68 and 253,905.72 is: 350,389.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,765.12 : 646,894.68 = 253,905.72 : x
  2. Step 2: Convert to fraction form
    468,765.12/646,894.68 = 253,905.72/x
  3. Step 3: Cross multiply
    468,765.12x = 646,894.68 × 253,905.72
  4. Step 4: Simplify right side
    468,765.12x = 164,250,259,489.57
  5. Step 5: Solve for x
    x = 164,250,259,489.57/468,765.12
  6. Step 6: Final answer
    x = 350,389.25

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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.