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Finding the Fourth Proportional to 710,760.93, 980,755.34 and 456,456.57

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Solution

The fourth proportional to 710,760.93, 980,755.34 and 456,456.57 is: 629,849.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,760.93 : 980,755.34 = 456,456.57 : x
  2. Step 2: Convert to fraction form
    710,760.93/980,755.34 = 456,456.57/x
  3. Step 3: Cross multiply
    710,760.93x = 980,755.34 × 456,456.57
  4. Step 4: Simplify right side
    710,760.93x = 447,672,216,223.30
  5. Step 5: Solve for x
    x = 447,672,216,223.30/710,760.93
  6. Step 6: Final answer
    x = 629,849.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.