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Finding the Fourth Proportional to 527,085.32, 790,528.21 and 256,942.10

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Solution

The fourth proportional to 527,085.32, 790,528.21 and 256,942.10 is: 385,364.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,085.32 : 790,528.21 = 256,942.10 : x
  2. Step 2: Convert to fraction form
    527,085.32/790,528.21 = 256,942.10/x
  3. Step 3: Cross multiply
    527,085.32x = 790,528.21 × 256,942.10
  4. Step 4: Simplify right side
    527,085.32x = 203,119,979,720.61
  5. Step 5: Solve for x
    x = 203,119,979,720.61/527,085.32
  6. Step 6: Final answer
    x = 385,364.52

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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.