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Finding the Fourth Proportional to 298,103.04, 411,381.90 and 170,779.14

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Solution

The fourth proportional to 298,103.04, 411,381.90 and 170,779.14 is: 235,675.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,103.04 : 411,381.90 = 170,779.14 : x
  2. Step 2: Convert to fraction form
    298,103.04/411,381.90 = 170,779.14/x
  3. Step 3: Cross multiply
    298,103.04x = 411,381.90 × 170,779.14
  4. Step 4: Simplify right side
    298,103.04x = 70,255,447,093.57
  5. Step 5: Solve for x
    x = 70,255,447,093.57/298,103.04
  6. Step 6: Final answer
    x = 235,675.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.