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Finding the Fourth Proportional to 285,852.34, 394,564.56 and 183,877.80

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Solution

The fourth proportional to 285,852.34, 394,564.56 and 183,877.80 is: 253,808.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,852.34 : 394,564.56 = 183,877.80 : x
  2. Step 2: Convert to fraction form
    285,852.34/394,564.56 = 183,877.80/x
  3. Step 3: Cross multiply
    285,852.34x = 394,564.56 × 183,877.80
  4. Step 4: Simplify right side
    285,852.34x = 72,551,661,081.61
  5. Step 5: Solve for x
    x = 72,551,661,081.61/285,852.34
  6. Step 6: Final answer
    x = 253,808.18

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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.