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Finding the Fourth Proportional to 716,454.70, 988,777.26 and 534,851.28

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Solution

The fourth proportional to 716,454.70, 988,777.26 and 534,851.28 is: 738,146.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,454.70 : 988,777.26 = 534,851.28 : x
  2. Step 2: Convert to fraction form
    716,454.70/988,777.26 = 534,851.28/x
  3. Step 3: Cross multiply
    716,454.70x = 988,777.26 × 534,851.28
  4. Step 4: Simplify right side
    716,454.70x = 528,848,783,145.89
  5. Step 5: Solve for x
    x = 528,848,783,145.89/716,454.70
  6. Step 6: Final answer
    x = 738,146.85

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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.