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Finding the Fourth Proportional to 485,055.30, 727,582.95 and 366,957.30

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Solution

The fourth proportional to 485,055.30, 727,582.95 and 366,957.30 is: 550,435.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,055.30 : 727,582.95 = 366,957.30 : x
  2. Step 2: Convert to fraction form
    485,055.30/727,582.95 = 366,957.30/x
  3. Step 3: Cross multiply
    485,055.30x = 727,582.95 × 366,957.30
  4. Step 4: Simplify right side
    485,055.30x = 266,991,874,858.04
  5. Step 5: Solve for x
    x = 266,991,874,858.04/485,055.30
  6. Step 6: Final answer
    x = 550,435.95

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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.