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Finding the Fourth Proportional to 632,539.45, 872,889.46 and 346,061.89

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Solution

The fourth proportional to 632,539.45, 872,889.46 and 346,061.89 is: 477,557.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,539.45 : 872,889.46 = 346,061.89 : x
  2. Step 2: Convert to fraction form
    632,539.45/872,889.46 = 346,061.89/x
  3. Step 3: Cross multiply
    632,539.45x = 872,889.46 × 346,061.89
  4. Step 4: Simplify right side
    632,539.45x = 302,073,776,288.68
  5. Step 5: Solve for x
    x = 302,073,776,288.68/632,539.45
  6. Step 6: Final answer
    x = 477,557.21

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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.