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Finding the Fourth Proportional to 525,613.20, 788,225.40 and 170,638.80

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Solution

The fourth proportional to 525,613.20, 788,225.40 and 170,638.80 is: 255,895.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,613.20 : 788,225.40 = 170,638.80 : x
  2. Step 2: Convert to fraction form
    525,613.20/788,225.40 = 170,638.80/x
  3. Step 3: Cross multiply
    525,613.20x = 788,225.40 × 170,638.80
  4. Step 4: Simplify right side
    525,613.20x = 134,501,836,385.52
  5. Step 5: Solve for x
    x = 134,501,836,385.52/525,613.20
  6. Step 6: Final answer
    x = 255,895.09

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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.