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Finding the Fourth Proportional to 524,020.20, 786,030.30 and 191,725.80

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Solution

The fourth proportional to 524,020.20, 786,030.30 and 191,725.80 is: 287,588.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,020.20 : 786,030.30 = 191,725.80 : x
  2. Step 2: Convert to fraction form
    524,020.20/786,030.30 = 191,725.80/x
  3. Step 3: Cross multiply
    524,020.20x = 786,030.30 × 191,725.80
  4. Step 4: Simplify right side
    524,020.20x = 150,702,288,091.74
  5. Step 5: Solve for x
    x = 150,702,288,091.74/524,020.20
  6. Step 6: Final answer
    x = 287,588.70

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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.