Home / 525,136.32-787,869.72-187,947.09

Finding the Fourth Proportional to 525,136.32, 787,869.72 and 187,947.09

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Solution

The fourth proportional to 525,136.32, 787,869.72 and 187,947.09 is: 281,979.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,136.32 : 787,869.72 = 187,947.09 : x
  2. Step 2: Convert to fraction form
    525,136.32/787,869.72 = 187,947.09/x
  3. Step 3: Cross multiply
    525,136.32x = 787,869.72 × 187,947.09
  4. Step 4: Simplify right side
    525,136.32x = 148,077,821,173.12
  5. Step 5: Solve for x
    x = 148,077,821,173.12/525,136.32
  6. Step 6: Final answer
    x = 281,979.77

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1.5x scale

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.