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Finding the Fourth Proportional to 628,082.40, 935,472.84 and 625,023.84

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Solution

The fourth proportional to 628,082.40, 935,472.84 and 625,023.84 is: 930,917.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,082.40 : 935,472.84 = 625,023.84 : x
  2. Step 2: Convert to fraction form
    628,082.40/935,472.84 = 625,023.84/x
  3. Step 3: Cross multiply
    628,082.40x = 935,472.84 × 625,023.84
  4. Step 4: Simplify right side
    628,082.40x = 584,692,826,672.51
  5. Step 5: Solve for x
    x = 584,692,826,672.51/628,082.40
  6. Step 6: Final answer
    x = 930,917.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.