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Finding the Fourth Proportional to 268,806.80, 403,210.20 and 174,328.40

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Solution

The fourth proportional to 268,806.80, 403,210.20 and 174,328.40 is: 261,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,806.80 : 403,210.20 = 174,328.40 : x
  2. Step 2: Convert to fraction form
    268,806.80/403,210.20 = 174,328.40/x
  3. Step 3: Cross multiply
    268,806.80x = 403,210.20 × 174,328.40
  4. Step 4: Simplify right side
    268,806.80x = 70,290,989,029.68
  5. Step 5: Solve for x
    x = 70,290,989,029.68/268,806.80
  6. Step 6: Final answer
    x = 261,492.60

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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.