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Finding the Fourth Proportional to 632,615.20, 873,008.40 and 346,136.48

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Solution

The fourth proportional to 632,615.20, 873,008.40 and 346,136.48 is: 477,668.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,615.20 : 873,008.40 = 346,136.48 : x
  2. Step 2: Convert to fraction form
    632,615.20/873,008.40 = 346,136.48/x
  3. Step 3: Cross multiply
    632,615.20x = 873,008.40 × 346,136.48
  4. Step 4: Simplify right side
    632,615.20x = 302,180,054,586.43
  5. Step 5: Solve for x
    x = 302,180,054,586.43/632,615.20
  6. Step 6: Final answer
    x = 477,668.03

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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.