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Finding the Fourth Proportional to 527,246, 790,705.44 and 190,242.80

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Solution

The fourth proportional to 527,246, 790,705.44 and 190,242.80 is: 285,305.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,246 : 790,705.44 = 190,242.80 : x
  2. Step 2: Convert to fraction form
    527,246/790,705.44 = 190,242.80/x
  3. Step 3: Cross multiply
    527,246x = 790,705.44 × 190,242.80
  4. Step 4: Simplify right side
    527,246x = 150,426,016,880.83
  5. Step 5: Solve for x
    x = 150,426,016,880.83/527,246
  6. Step 6: Final answer
    x = 285,305.18

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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.