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Finding the Fourth Proportional to 452,274.40, 678,411.60 and 185,946.40

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Solution

The fourth proportional to 452,274.40, 678,411.60 and 185,946.40 is: 278,919.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,274.40 : 678,411.60 = 185,946.40 : x
  2. Step 2: Convert to fraction form
    452,274.40/678,411.60 = 185,946.40/x
  3. Step 3: Cross multiply
    452,274.40x = 678,411.60 × 185,946.40
  4. Step 4: Simplify right side
    452,274.40x = 126,148,194,738.24
  5. Step 5: Solve for x
    x = 126,148,194,738.24/452,274.40
  6. Step 6: Final answer
    x = 278,919.60

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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.