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Finding the Fourth Proportional to 321,637.03, 482,332.40 and 108,347.63

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Solution

The fourth proportional to 321,637.03, 482,332.40 and 108,347.63 is: 162,479.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,637.03 : 482,332.40 = 108,347.63 : x
  2. Step 2: Convert to fraction form
    321,637.03/482,332.40 = 108,347.63/x
  3. Step 3: Cross multiply
    321,637.03x = 482,332.40 × 108,347.63
  4. Step 4: Simplify right side
    321,637.03x = 52,259,573,187.69
  5. Step 5: Solve for x
    x = 52,259,573,187.69/321,637.03
  6. Step 6: Final answer
    x = 162,479.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.