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Finding the Fourth Proportional to 620,383.30, 866,765.15 and 620,383.30

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Solution

The fourth proportional to 620,383.30, 866,765.15 and 620,383.30 is: 866,765.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,383.30 : 866,765.15 = 620,383.30 : x
  2. Step 2: Convert to fraction form
    620,383.30/866,765.15 = 620,383.30/x
  3. Step 3: Cross multiply
    620,383.30x = 866,765.15 × 620,383.30
  4. Step 4: Simplify right side
    620,383.30x = 537,726,624,082.00
  5. Step 5: Solve for x
    x = 537,726,624,082.00/620,383.30
  6. Step 6: Final answer
    x = 866,765.15

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.