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Finding the Fourth Proportional to 618,779.10, 928,169.44 and 169,503.92

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Solution

The fourth proportional to 618,779.10, 928,169.44 and 169,503.92 is: 254,256.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,779.10 : 928,169.44 = 169,503.92 : x
  2. Step 2: Convert to fraction form
    618,779.10/928,169.44 = 169,503.92/x
  3. Step 3: Cross multiply
    618,779.10x = 928,169.44 × 169,503.92
  4. Step 4: Simplify right side
    618,779.10x = 157,328,358,504.21
  5. Step 5: Solve for x
    x = 157,328,358,504.21/618,779.10
  6. Step 6: Final answer
    x = 254,256.10

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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.