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Finding the Fourth Proportional to 632,659.90, 873,070.66 and 346,179.99

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Solution

The fourth proportional to 632,659.90, 873,070.66 and 346,179.99 is: 477,728.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,659.90 : 873,070.66 = 346,179.99 : x
  2. Step 2: Convert to fraction form
    632,659.90/873,070.66 = 346,179.99/x
  3. Step 3: Cross multiply
    632,659.90x = 873,070.66 × 346,179.99
  4. Step 4: Simplify right side
    632,659.90x = 302,239,592,348.09
  5. Step 5: Solve for x
    x = 302,239,592,348.09/632,659.90
  6. Step 6: Final answer
    x = 477,728.39

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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.