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Finding the Fourth Proportional to 527,243, 790,700.94 and 190,239.80

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Solution

The fourth proportional to 527,243, 790,700.94 and 190,239.80 is: 285,300.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,243 : 790,700.94 = 190,239.80 : x
  2. Step 2: Convert to fraction form
    527,243/790,700.94 = 190,239.80/x
  3. Step 3: Cross multiply
    527,243x = 790,700.94 × 190,239.80
  4. Step 4: Simplify right side
    527,243x = 150,422,788,685.41
  5. Step 5: Solve for x
    x = 150,422,788,685.41/527,243
  6. Step 6: Final answer
    x = 285,300.68

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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.