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Finding the Fourth Proportional to 569,637.45, 853,708.68 and 419,173.20

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Solution

The fourth proportional to 569,637.45, 853,708.68 and 419,173.20 is: 628,209.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,637.45 : 853,708.68 = 419,173.20 : x
  2. Step 2: Convert to fraction form
    569,637.45/853,708.68 = 419,173.20/x
  3. Step 3: Cross multiply
    569,637.45x = 853,708.68 × 419,173.20
  4. Step 4: Simplify right side
    569,637.45x = 357,851,799,263.38
  5. Step 5: Solve for x
    x = 357,851,799,263.38/569,637.45
  6. Step 6: Final answer
    x = 628,209.75

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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.