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Finding the Fourth Proportional to 322,492.16, 445,003.80 and 186,528.80

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Solution

The fourth proportional to 322,492.16, 445,003.80 and 186,528.80 is: 257,389.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,492.16 : 445,003.80 = 186,528.80 : x
  2. Step 2: Convert to fraction form
    322,492.16/445,003.80 = 186,528.80/x
  3. Step 3: Cross multiply
    322,492.16x = 445,003.80 × 186,528.80
  4. Step 4: Simplify right side
    322,492.16x = 83,006,024,809.44
  5. Step 5: Solve for x
    x = 83,006,024,809.44/322,492.16
  6. Step 6: Final answer
    x = 257,389.28

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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.