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Finding the Fourth Proportional to 632,903.28, 873,403.68 and 346,422.48

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Solution

The fourth proportional to 632,903.28, 873,403.68 and 346,422.48 is: 478,061.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,903.28 : 873,403.68 = 346,422.48 : x
  2. Step 2: Convert to fraction form
    632,903.28/873,403.68 = 346,422.48/x
  3. Step 3: Cross multiply
    632,903.28x = 873,403.68 × 346,422.48
  4. Step 4: Simplify right side
    632,903.28x = 302,566,668,866.73
  5. Step 5: Solve for x
    x = 302,566,668,866.73/632,903.28
  6. Step 6: Final answer
    x = 478,061.46

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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.