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Finding the Fourth Proportional to 268,813.80, 403,220.70 and 174,335.40

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Solution

The fourth proportional to 268,813.80, 403,220.70 and 174,335.40 is: 261,503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,813.80 : 403,220.70 = 174,335.40 : x
  2. Step 2: Convert to fraction form
    268,813.80/403,220.70 = 174,335.40/x
  3. Step 3: Cross multiply
    268,813.80x = 403,220.70 × 174,335.40
  4. Step 4: Simplify right side
    268,813.80x = 70,295,642,022.78
  5. Step 5: Solve for x
    x = 70,295,642,022.78/268,813.80
  6. Step 6: Final answer
    x = 261,503.10

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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.