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Finding the Fourth Proportional to 525,136.80, 787,923.90 and 170,259.60

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Solution

The fourth proportional to 525,136.80, 787,923.90 and 170,259.60 is: 255,460.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,136.80 : 787,923.90 = 170,259.60 : x
  2. Step 2: Convert to fraction form
    525,136.80/787,923.90 = 170,259.60/x
  3. Step 3: Cross multiply
    525,136.80x = 787,923.90 × 170,259.60
  4. Step 4: Simplify right side
    525,136.80x = 134,151,608,044.44
  5. Step 5: Solve for x
    x = 134,151,608,044.44/525,136.80
  6. Step 6: Final answer
    x = 255,460.31

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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.