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Finding the Fourth Proportional to 929,893.92, 1,393,510 and 529,707.86

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Solution

The fourth proportional to 929,893.92, 1,393,510 and 529,707.86 is: 793,803.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,893.92 : 1,393,510 = 529,707.86 : x
  2. Step 2: Convert to fraction form
    929,893.92/1,393,510 = 529,707.86/x
  3. Step 3: Cross multiply
    929,893.92x = 1,393,510 × 529,707.86
  4. Step 4: Simplify right side
    929,893.92x = 738,153,199,988.60
  5. Step 5: Solve for x
    x = 738,153,199,988.60/929,893.92
  6. Step 6: Final answer
    x = 793,803.66

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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.