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Finding the Fourth Proportional to 357,434.80, 535,277.40 and 170,227.60

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Solution

The fourth proportional to 357,434.80, 535,277.40 and 170,227.60 is: 254,924.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,434.80 : 535,277.40 = 170,227.60 : x
  2. Step 2: Convert to fraction form
    357,434.80/535,277.40 = 170,227.60/x
  3. Step 3: Cross multiply
    357,434.80x = 535,277.40 × 170,227.60
  4. Step 4: Simplify right side
    357,434.80x = 91,118,987,136.24
  5. Step 5: Solve for x
    x = 91,118,987,136.24/357,434.80
  6. Step 6: Final answer
    x = 254,924.78

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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.