Home / 612,741.20-919,140.60-192,030.80

Finding the Fourth Proportional to 612,741.20, 919,140.60 and 192,030.80

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Solution

The fourth proportional to 612,741.20, 919,140.60 and 192,030.80 is: 288,055.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,741.20 : 919,140.60 = 192,030.80 : x
  2. Step 2: Convert to fraction form
    612,741.20/919,140.60 = 192,030.80/x
  3. Step 3: Cross multiply
    612,741.20x = 919,140.60 × 192,030.80
  4. Step 4: Simplify right side
    612,741.20x = 176,503,304,730.48
  5. Step 5: Solve for x
    x = 176,503,304,730.48/612,741.20
  6. Step 6: Final answer
    x = 288,055.23

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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.