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Finding the Fourth Proportional to 802,658.28, 1,107,393.48 and 458,246.28

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Solution

The fourth proportional to 802,658.28, 1,107,393.48 and 458,246.28 is: 632,222.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,658.28 : 1,107,393.48 = 458,246.28 : x
  2. Step 2: Convert to fraction form
    802,658.28/1,107,393.48 = 458,246.28/x
  3. Step 3: Cross multiply
    802,658.28x = 1,107,393.48 × 458,246.28
  4. Step 4: Simplify right side
    802,658.28x = 507,458,942,706.25
  5. Step 5: Solve for x
    x = 507,458,942,706.25/802,658.28
  6. Step 6: Final answer
    x = 632,222.90

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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.