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Finding the Fourth Proportional to 355,436.59, 533,154.89 and 118,779.27

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Solution

The fourth proportional to 355,436.59, 533,154.89 and 118,779.27 is: 178,168.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,436.59 : 533,154.89 = 118,779.27 : x
  2. Step 2: Convert to fraction form
    355,436.59/533,154.89 = 118,779.27/x
  3. Step 3: Cross multiply
    355,436.59x = 533,154.89 × 118,779.27
  4. Step 4: Simplify right side
    355,436.59x = 63,327,747,370.79
  5. Step 5: Solve for x
    x = 63,327,747,370.79/355,436.59
  6. Step 6: Final answer
    x = 178,168.90

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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.