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Finding the Fourth Proportional to 704,765.12, 972,576.54 and 382,475.30

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Solution

The fourth proportional to 704,765.12, 972,576.54 and 382,475.30 is: 527,816.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,765.12 : 972,576.54 = 382,475.30 : x
  2. Step 2: Convert to fraction form
    704,765.12/972,576.54 = 382,475.30/x
  3. Step 3: Cross multiply
    704,765.12x = 972,576.54 × 382,475.30
  4. Step 4: Simplify right side
    704,765.12x = 371,986,503,909.46
  5. Step 5: Solve for x
    x = 371,986,503,909.46/704,765.12
  6. Step 6: Final answer
    x = 527,816.28

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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.