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Finding the Fourth Proportional to 929,891.92, 1,393,507 and 529,705.86

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Solution

The fourth proportional to 929,891.92, 1,393,507 and 529,705.86 is: 793,800.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,891.92 : 1,393,507 = 529,705.86 : x
  2. Step 2: Convert to fraction form
    929,891.92/1,393,507 = 529,705.86/x
  3. Step 3: Cross multiply
    929,891.92x = 1,393,507 × 529,705.86
  4. Step 4: Simplify right side
    929,891.92x = 738,148,823,851.02
  5. Step 5: Solve for x
    x = 738,148,823,851.02/929,891.92
  6. Step 6: Final answer
    x = 793,800.66

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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.