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Finding the Fourth Proportional to 632,587.08, 872,990.94 and 346,100.64

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Solution

The fourth proportional to 632,587.08, 872,990.94 and 346,100.64 is: 477,630.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,587.08 : 872,990.94 = 346,100.64 : x
  2. Step 2: Convert to fraction form
    632,587.08/872,990.94 = 346,100.64/x
  3. Step 3: Cross multiply
    632,587.08x = 872,990.94 × 346,100.64
  4. Step 4: Simplify right side
    632,587.08x = 302,142,723,048.20
  5. Step 5: Solve for x
    x = 302,142,723,048.20/632,587.08
  6. Step 6: Final answer
    x = 477,630.25

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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.