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Finding the Fourth Proportional to 527,213.94, 790,657.41 and 190,210.80

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Solution

The fourth proportional to 527,213.94, 790,657.41 and 190,210.80 is: 285,257.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,213.94 : 790,657.41 = 190,210.80 : x
  2. Step 2: Convert to fraction form
    527,213.94/790,657.41 = 190,210.80/x
  3. Step 3: Cross multiply
    527,213.94x = 790,657.41 × 190,210.80
  4. Step 4: Simplify right side
    527,213.94x = 150,391,578,482.03
  5. Step 5: Solve for x
    x = 150,391,578,482.03/527,213.94
  6. Step 6: Final answer
    x = 285,257.21

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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.