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Finding the Fourth Proportional to 351,779.32, 527,661.68 and 85,541.23

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Solution

The fourth proportional to 351,779.32, 527,661.68 and 85,541.23 is: 128,310.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,779.32 : 527,661.68 = 85,541.23 : x
  2. Step 2: Convert to fraction form
    351,779.32/527,661.68 = 85,541.23/x
  3. Step 3: Cross multiply
    351,779.32x = 527,661.68 × 85,541.23
  4. Step 4: Simplify right side
    351,779.32x = 45,136,826,492.76
  5. Step 5: Solve for x
    x = 45,136,826,492.76/351,779.32
  6. Step 6: Final answer
    x = 128,310.06

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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.