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Finding the Fourth Proportional to 525,818.60, 788,555.10 and 193,351.40

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Solution

The fourth proportional to 525,818.60, 788,555.10 and 193,351.40 is: 289,963.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,818.60 : 788,555.10 = 193,351.40 : x
  2. Step 2: Convert to fraction form
    525,818.60/788,555.10 = 193,351.40/x
  3. Step 3: Cross multiply
    525,818.60x = 788,555.10 × 193,351.40
  4. Step 4: Simplify right side
    525,818.60x = 152,468,232,562.14
  5. Step 5: Solve for x
    x = 152,468,232,562.14/525,818.60
  6. Step 6: Final answer
    x = 289,963.56

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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.