Home / 527,568.12-728,042.99-285,857.23

Finding the Fourth Proportional to 527,568.12, 728,042.99 and 285,857.23

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Solution

The fourth proportional to 527,568.12, 728,042.99 and 285,857.23 is: 394,482.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,568.12 : 728,042.99 = 285,857.23 : x
  2. Step 2: Convert to fraction form
    527,568.12/728,042.99 = 285,857.23/x
  3. Step 3: Cross multiply
    527,568.12x = 728,042.99 × 285,857.23
  4. Step 4: Simplify right side
    527,568.12x = 208,116,352,442.32
  5. Step 5: Solve for x
    x = 208,116,352,442.32/527,568.12
  6. Step 6: Final answer
    x = 394,482.43

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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.