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Finding the Fourth Proportional to 612,860.34, 919,290.54 and 192,170.10

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Solution

The fourth proportional to 612,860.34, 919,290.54 and 192,170.10 is: 288,255.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,860.34 : 919,290.54 = 192,170.10 : x
  2. Step 2: Convert to fraction form
    612,860.34/919,290.54 = 192,170.10/x
  3. Step 3: Cross multiply
    612,860.34x = 919,290.54 × 192,170.10
  4. Step 4: Simplify right side
    612,860.34x = 176,660,155,000.85
  5. Step 5: Solve for x
    x = 176,660,155,000.85/612,860.34
  6. Step 6: Final answer
    x = 288,255.16

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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.