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Finding the Fourth Proportional to 485,055.60, 727,583.40 and 332,840.40

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Solution

The fourth proportional to 485,055.60, 727,583.40 and 332,840.40 is: 499,260.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,055.60 : 727,583.40 = 332,840.40 : x
  2. Step 2: Convert to fraction form
    485,055.60/727,583.40 = 332,840.40/x
  3. Step 3: Cross multiply
    485,055.60x = 727,583.40 × 332,840.40
  4. Step 4: Simplify right side
    485,055.60x = 242,169,149,889.36
  5. Step 5: Solve for x
    x = 242,169,149,889.36/485,055.60
  6. Step 6: Final answer
    x = 499,260.60

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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.