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Finding the Fourth Proportional to 573,034.20, 860,469.30 and 455,681.40

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Solution

The fourth proportional to 573,034.20, 860,469.30 and 455,681.40 is: 684,252.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,034.20 : 860,469.30 = 455,681.40 : x
  2. Step 2: Convert to fraction form
    573,034.20/860,469.30 = 455,681.40/x
  3. Step 3: Cross multiply
    573,034.20x = 860,469.30 × 455,681.40
  4. Step 4: Simplify right side
    573,034.20x = 392,099,855,281.02
  5. Step 5: Solve for x
    x = 392,099,855,281.02/573,034.20
  6. Step 6: Final answer
    x = 684,252.10

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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.