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Finding the Fourth Proportional to 554,521.80, 831,782.70 and 180,582.60

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Solution

The fourth proportional to 554,521.80, 831,782.70 and 180,582.60 is: 270,873.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,521.80 : 831,782.70 = 180,582.60 : x
  2. Step 2: Convert to fraction form
    554,521.80/831,782.70 = 180,582.60/x
  3. Step 3: Cross multiply
    554,521.80x = 831,782.70 × 180,582.60
  4. Step 4: Simplify right side
    554,521.80x = 150,205,482,601.02
  5. Step 5: Solve for x
    x = 150,205,482,601.02/554,521.80
  6. Step 6: Final answer
    x = 270,873.90

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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.