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Finding the Fourth Proportional to 503,612.40, 755,199.90 and 166,522.80

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Solution

The fourth proportional to 503,612.40, 755,199.90 and 166,522.80 is: 249,711.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,612.40 : 755,199.90 = 166,522.80 : x
  2. Step 2: Convert to fraction form
    503,612.40/755,199.90 = 166,522.80/x
  3. Step 3: Cross multiply
    503,612.40x = 755,199.90 × 166,522.80
  4. Step 4: Simplify right side
    503,612.40x = 125,758,001,907.72
  5. Step 5: Solve for x
    x = 125,758,001,907.72/503,612.40
  6. Step 6: Final answer
    x = 249,711.89

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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.