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Finding the Fourth Proportional to 525,121.80, 787,779.90 and 170,147.40

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Solution

The fourth proportional to 525,121.80, 787,779.90 and 170,147.40 is: 255,252.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,121.80 : 787,779.90 = 170,147.40 : x
  2. Step 2: Convert to fraction form
    525,121.80/787,779.90 = 170,147.40/x
  3. Step 3: Cross multiply
    525,121.80x = 787,779.90 × 170,147.40
  4. Step 4: Simplify right side
    525,121.80x = 134,038,701,757.26
  5. Step 5: Solve for x
    x = 134,038,701,757.26/525,121.80
  6. Step 6: Final answer
    x = 255,252.59

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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.