Home / 1,280,095.40-1,920,136.16-521,933.92

Finding the Fourth Proportional to 1,280,095.40, 1,920,136.16 and 521,933.92

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Solution

The fourth proportional to 1,280,095.40, 1,920,136.16 and 521,933.92 is: 782,898.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,095.40 : 1,920,136.16 = 521,933.92 : x
  2. Step 2: Convert to fraction form
    1,280,095.40/1,920,136.16 = 521,933.92/x
  3. Step 3: Cross multiply
    1,280,095.40x = 1,920,136.16 × 521,933.92
  4. Step 4: Simplify right side
    1,280,095.40x = 1,002,184,192,922.55
  5. Step 5: Solve for x
    x = 1,002,184,192,922.55/1,280,095.40
  6. Step 6: Final answer
    x = 782,898.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.