Home / 434,541.20-651,811.80-118,997.60

Finding the Fourth Proportional to 434,541.20, 651,811.80 and 118,997.60

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Solution

The fourth proportional to 434,541.20, 651,811.80 and 118,997.60 is: 178,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,541.20 : 651,811.80 = 118,997.60 : x
  2. Step 2: Convert to fraction form
    434,541.20/651,811.80 = 118,997.60/x
  3. Step 3: Cross multiply
    434,541.20x = 651,811.80 × 118,997.60
  4. Step 4: Simplify right side
    434,541.20x = 77,564,039,851.68
  5. Step 5: Solve for x
    x = 77,564,039,851.68/434,541.20
  6. Step 6: Final answer
    x = 178,496.40

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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.