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Finding the Fourth Proportional to 569,357.40, 854,301.78 and 253,781.40

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Solution

The fourth proportional to 569,357.40, 854,301.78 and 253,781.40 is: 380,790.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,357.40 : 854,301.78 = 253,781.40 : x
  2. Step 2: Convert to fraction form
    569,357.40/854,301.78 = 253,781.40/x
  3. Step 3: Cross multiply
    569,357.40x = 854,301.78 × 253,781.40
  4. Step 4: Simplify right side
    569,357.40x = 216,805,901,750.89
  5. Step 5: Solve for x
    x = 216,805,901,750.89/569,357.40
  6. Step 6: Final answer
    x = 380,790.52

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Double scale
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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.