Home / 494,099.31-681,583.18-287,345.07

Finding the Fourth Proportional to 494,099.31, 681,583.18 and 287,345.07

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Solution

The fourth proportional to 494,099.31, 681,583.18 and 287,345.07 is: 396,376.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,099.31 : 681,583.18 = 287,345.07 : x
  2. Step 2: Convert to fraction form
    494,099.31/681,583.18 = 287,345.07/x
  3. Step 3: Cross multiply
    494,099.31x = 681,583.18 × 287,345.07
  4. Step 4: Simplify right side
    494,099.31x = 195,849,566,567.92
  5. Step 5: Solve for x
    x = 195,849,566,567.92/494,099.31
  6. Step 6: Final answer
    x = 396,376.93

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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.