Home / 612,917.60-919,376.40-192,192.80

Finding the Fourth Proportional to 612,917.60, 919,376.40 and 192,192.80

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Solution

The fourth proportional to 612,917.60, 919,376.40 and 192,192.80 is: 288,289.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,917.60 : 919,376.40 = 192,192.80 : x
  2. Step 2: Convert to fraction form
    612,917.60/919,376.40 = 192,192.80/x
  3. Step 3: Cross multiply
    612,917.60x = 919,376.40 × 192,192.80
  4. Step 4: Simplify right side
    612,917.60x = 176,697,524,569.92
  5. Step 5: Solve for x
    x = 176,697,524,569.92/612,917.60
  6. Step 6: Final answer
    x = 288,289.20

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Similar ratio
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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.