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Finding the Fourth Proportional to 573,670.20, 860,505.30 and 384,713.40

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Solution

The fourth proportional to 573,670.20, 860,505.30 and 384,713.40 is: 577,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,670.20 : 860,505.30 = 384,713.40 : x
  2. Step 2: Convert to fraction form
    573,670.20/860,505.30 = 384,713.40/x
  3. Step 3: Cross multiply
    573,670.20x = 860,505.30 × 384,713.40
  4. Step 4: Simplify right side
    573,670.20x = 331,047,919,681.02
  5. Step 5: Solve for x
    x = 331,047,919,681.02/573,670.20
  6. Step 6: Final answer
    x = 577,070.10

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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.