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Finding the Fourth Proportional to 458,630.51, 632,808.18 and 277,338.63

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Solution

The fourth proportional to 458,630.51, 632,808.18 and 277,338.63 is: 382,665.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,630.51 : 632,808.18 = 277,338.63 : x
  2. Step 2: Convert to fraction form
    458,630.51/632,808.18 = 277,338.63/x
  3. Step 3: Cross multiply
    458,630.51x = 632,808.18 × 277,338.63
  4. Step 4: Simplify right side
    458,630.51x = 175,502,156,067.02
  5. Step 5: Solve for x
    x = 175,502,156,067.02/458,630.51
  6. Step 6: Final answer
    x = 382,665.68

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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.