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Finding the Fourth Proportional to 329,186.10, 493,779.15 and 118,830.90

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Solution

The fourth proportional to 329,186.10, 493,779.15 and 118,830.90 is: 178,246.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,186.10 : 493,779.15 = 118,830.90 : x
  2. Step 2: Convert to fraction form
    329,186.10/493,779.15 = 118,830.90/x
  3. Step 3: Cross multiply
    329,186.10x = 493,779.15 × 118,830.90
  4. Step 4: Simplify right side
    329,186.10x = 58,676,220,795.74
  5. Step 5: Solve for x
    x = 58,676,220,795.74/329,186.10
  6. Step 6: Final answer
    x = 178,246.35

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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.