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Finding the Fourth Proportional to 632,699.30, 873,125 and 346,219.42

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Solution

The fourth proportional to 632,699.30, 873,125 and 346,219.42 is: 477,782.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,699.30 : 873,125 = 346,219.42 : x
  2. Step 2: Convert to fraction form
    632,699.30/873,125 = 346,219.42/x
  3. Step 3: Cross multiply
    632,699.30x = 873,125 × 346,219.42
  4. Step 4: Simplify right side
    632,699.30x = 302,292,831,087.50
  5. Step 5: Solve for x
    x = 302,292,831,087.50/632,699.30
  6. Step 6: Final answer
    x = 477,782.78

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1.5x scale

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.