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Finding the Fourth Proportional to 458,465.13, 632,780.91 and 349,851.69

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Solution

The fourth proportional to 458,465.13, 632,780.91 and 349,851.69 is: 482,870.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,465.13 : 632,780.91 = 349,851.69 : x
  2. Step 2: Convert to fraction form
    458,465.13/632,780.91 = 349,851.69/x
  3. Step 3: Cross multiply
    458,465.13x = 632,780.91 × 349,851.69
  4. Step 4: Simplify right side
    458,465.13x = 221,379,470,763.24
  5. Step 5: Solve for x
    x = 221,379,470,763.24/458,465.13
  6. Step 6: Final answer
    x = 482,870.90

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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.