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Finding the Fourth Proportional to 268,925.20, 403,387.80 and 174,446.80

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Solution

The fourth proportional to 268,925.20, 403,387.80 and 174,446.80 is: 261,670.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,925.20 : 403,387.80 = 174,446.80 : x
  2. Step 2: Convert to fraction form
    268,925.20/403,387.80 = 174,446.80/x
  3. Step 3: Cross multiply
    268,925.20x = 403,387.80 × 174,446.80
  4. Step 4: Simplify right side
    268,925.20x = 70,369,710,869.04
  5. Step 5: Solve for x
    x = 70,369,710,869.04/268,925.20
  6. Step 6: Final answer
    x = 261,670.20

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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.