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Finding the Fourth Proportional to 528,659.97, 729,377.06 and 299,194.46

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Solution

The fourth proportional to 528,659.97, 729,377.06 and 299,194.46 is: 412,790.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,659.97 : 729,377.06 = 299,194.46 : x
  2. Step 2: Convert to fraction form
    528,659.97/729,377.06 = 299,194.46/x
  3. Step 3: Cross multiply
    528,659.97x = 729,377.06 × 299,194.46
  4. Step 4: Simplify right side
    528,659.97x = 218,225,573,195.39
  5. Step 5: Solve for x
    x = 218,225,573,195.39/528,659.97
  6. Step 6: Final answer
    x = 412,790.05

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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.