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Finding the Fourth Proportional to 501,927.44, 692,774.17 and 287,185.91

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Solution

The fourth proportional to 501,927.44, 692,774.17 and 287,185.91 is: 396,381.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,927.44 : 692,774.17 = 287,185.91 : x
  2. Step 2: Convert to fraction form
    501,927.44/692,774.17 = 287,185.91/x
  3. Step 3: Cross multiply
    501,927.44x = 692,774.17 × 287,185.91
  4. Step 4: Simplify right side
    501,927.44x = 198,954,976,254.11
  5. Step 5: Solve for x
    x = 198,954,976,254.11/501,927.44
  6. Step 6: Final answer
    x = 396,381.95

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1.5x scale

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.