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Finding the Fourth Proportional to 716,910.89, 988,833.13 and 471,817.58

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Solution

The fourth proportional to 716,910.89, 988,833.13 and 471,817.58 is: 650,776.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,910.89 : 988,833.13 = 471,817.58 : x
  2. Step 2: Convert to fraction form
    716,910.89/988,833.13 = 471,817.58/x
  3. Step 3: Cross multiply
    716,910.89x = 988,833.13 × 471,817.58
  4. Step 4: Simplify right side
    716,910.89x = 466,548,848,296.72
  5. Step 5: Solve for x
    x = 466,548,848,296.72/716,910.89
  6. Step 6: Final answer
    x = 650,776.63

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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.