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Finding the Fourth Proportional to 704,799.95, 972,631.19 and 382,512.83

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Solution

The fourth proportional to 704,799.95, 972,631.19 and 382,512.83 is: 527,871.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,799.95 : 972,631.19 = 382,512.83 : x
  2. Step 2: Convert to fraction form
    704,799.95/972,631.19 = 382,512.83/x
  3. Step 3: Cross multiply
    704,799.95x = 972,631.19 × 382,512.83
  4. Step 4: Simplify right side
    704,799.95x = 372,043,905,126.29
  5. Step 5: Solve for x
    x = 372,043,905,126.29/704,799.95
  6. Step 6: Final answer
    x = 527,871.64

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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.