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Finding the Fourth Proportional to 569,059.40, 853,589.10 and 285,624.20

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Solution

The fourth proportional to 569,059.40, 853,589.10 and 285,624.20 is: 428,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,059.40 : 853,589.10 = 285,624.20 : x
  2. Step 2: Convert to fraction form
    569,059.40/853,589.10 = 285,624.20/x
  3. Step 3: Cross multiply
    569,059.40x = 853,589.10 × 285,624.20
  4. Step 4: Simplify right side
    569,059.40x = 243,805,703,816.22
  5. Step 5: Solve for x
    x = 243,805,703,816.22/569,059.40
  6. Step 6: Final answer
    x = 428,436.30

Related Problems

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Half scale
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Double scale
Find fourth proportional to 569,060.40, 853,590.60 and 285,625.20
Similar ratio
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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.