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Finding the Fourth Proportional to 525,873.75, 725,690.39 and 296,444.49

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Solution

The fourth proportional to 525,873.75, 725,690.39 and 296,444.49 is: 409,084.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,873.75 : 725,690.39 = 296,444.49 : x
  2. Step 2: Convert to fraction form
    525,873.75/725,690.39 = 296,444.49/x
  3. Step 3: Cross multiply
    525,873.75x = 725,690.39 × 296,444.49
  4. Step 4: Simplify right side
    525,873.75x = 215,126,916,079.23
  5. Step 5: Solve for x
    x = 215,126,916,079.23/525,873.75
  6. Step 6: Final answer
    x = 409,084.72

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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.