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Finding the Fourth Proportional to 486,817.32, 730,309.02 and 217,043.35

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Solution

The fourth proportional to 486,817.32, 730,309.02 and 217,043.35 is: 325,602.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,817.32 : 730,309.02 = 217,043.35 : x
  2. Step 2: Convert to fraction form
    486,817.32/730,309.02 = 217,043.35/x
  3. Step 3: Cross multiply
    486,817.32x = 730,309.02 × 217,043.35
  4. Step 4: Simplify right side
    486,817.32x = 158,508,716,236.02
  5. Step 5: Solve for x
    x = 158,508,716,236.02/486,817.32
  6. Step 6: Final answer
    x = 325,602.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.