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Finding the Fourth Proportional to 523,054.80, 784,582.20 and 149,029.20

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Solution

The fourth proportional to 523,054.80, 784,582.20 and 149,029.20 is: 223,543.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,054.80 : 784,582.20 = 149,029.20 : x
  2. Step 2: Convert to fraction form
    523,054.80/784,582.20 = 149,029.20/x
  3. Step 3: Cross multiply
    523,054.80x = 784,582.20 × 149,029.20
  4. Step 4: Simplify right side
    523,054.80x = 116,925,657,600.24
  5. Step 5: Solve for x
    x = 116,925,657,600.24/523,054.80
  6. Step 6: Final answer
    x = 223,543.80

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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.