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Finding the Fourth Proportional to 612,851.60, 919,277.40 and 192,126.80

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Solution

The fourth proportional to 612,851.60, 919,277.40 and 192,126.80 is: 288,190.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,851.60 : 919,277.40 = 192,126.80 : x
  2. Step 2: Convert to fraction form
    612,851.60/919,277.40 = 192,126.80/x
  3. Step 3: Cross multiply
    612,851.60x = 919,277.40 × 192,126.80
  4. Step 4: Simplify right side
    612,851.60x = 176,617,825,174.32
  5. Step 5: Solve for x
    x = 176,617,825,174.32/612,851.60
  6. Step 6: Final answer
    x = 288,190.20

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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.