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Finding the Fourth Proportional to 569,602.42, 853,656.28 and 419,138.18

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Solution

The fourth proportional to 569,602.42, 853,656.28 and 419,138.18 is: 628,157.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,602.42 : 853,656.28 = 419,138.18 : x
  2. Step 2: Convert to fraction form
    569,602.42/853,656.28 = 419,138.18/x
  3. Step 3: Cross multiply
    569,602.42x = 853,656.28 × 419,138.18
  4. Step 4: Simplify right side
    569,602.42x = 357,799,939,544.77
  5. Step 5: Solve for x
    x = 357,799,939,544.77/569,602.42
  6. Step 6: Final answer
    x = 628,157.34

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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.