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Finding the Fourth Proportional to 268,843.70, 403,265.55 and 174,365.30

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Solution

The fourth proportional to 268,843.70, 403,265.55 and 174,365.30 is: 261,547.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,843.70 : 403,265.55 = 174,365.30 : x
  2. Step 2: Convert to fraction form
    268,843.70/403,265.55 = 174,365.30/x
  3. Step 3: Cross multiply
    268,843.70x = 403,265.55 × 174,365.30
  4. Step 4: Simplify right side
    268,843.70x = 70,315,518,605.42
  5. Step 5: Solve for x
    x = 70,315,518,605.42/268,843.70
  6. Step 6: Final answer
    x = 261,547.95

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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.