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Finding the Fourth Proportional to 573,615.11, 860,415.37 and 257,848.76

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Solution

The fourth proportional to 573,615.11, 860,415.37 and 257,848.76 is: 386,769.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,615.11 : 860,415.37 = 257,848.76 : x
  2. Step 2: Convert to fraction form
    573,615.11/860,415.37 = 257,848.76/x
  3. Step 3: Cross multiply
    573,615.11x = 860,415.37 × 257,848.76
  4. Step 4: Simplify right side
    573,615.11x = 221,857,036,239.44
  5. Step 5: Solve for x
    x = 221,857,036,239.44/573,615.11
  6. Step 6: Final answer
    x = 386,769.86

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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.