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Finding the Fourth Proportional to 573,126.20, 860,607.30 and 455,773.40

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Solution

The fourth proportional to 573,126.20, 860,607.30 and 455,773.40 is: 684,390.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,126.20 : 860,607.30 = 455,773.40 : x
  2. Step 2: Convert to fraction form
    573,126.20/860,607.30 = 455,773.40/x
  3. Step 3: Cross multiply
    573,126.20x = 860,607.30 × 455,773.40
  4. Step 4: Simplify right side
    573,126.20x = 392,241,915,185.82
  5. Step 5: Solve for x
    x = 392,241,915,185.82/573,126.20
  6. Step 6: Final answer
    x = 684,390.13

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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.