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Finding the Fourth Proportional to 581,657.90, 815,150.50 and 581,657.90

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Solution

The fourth proportional to 581,657.90, 815,150.50 and 581,657.90 is: 815,150.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,657.90 : 815,150.50 = 581,657.90 : x
  2. Step 2: Convert to fraction form
    581,657.90/815,150.50 = 581,657.90/x
  3. Step 3: Cross multiply
    581,657.90x = 815,150.50 × 581,657.90
  4. Step 4: Simplify right side
    581,657.90x = 474,138,728,013.95
  5. Step 5: Solve for x
    x = 474,138,728,013.95/581,657.90
  6. Step 6: Final answer
    x = 815,150.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.