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Finding the Fourth Proportional to 400,522.32, 552,718.08 and 230,752.80

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Solution

The fourth proportional to 400,522.32, 552,718.08 and 230,752.80 is: 318,437.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,522.32 : 552,718.08 = 230,752.80 : x
  2. Step 2: Convert to fraction form
    400,522.32/552,718.08 = 230,752.80/x
  3. Step 3: Cross multiply
    400,522.32x = 552,718.08 × 230,752.80
  4. Step 4: Simplify right side
    400,522.32x = 127,541,244,570.62
  5. Step 5: Solve for x
    x = 127,541,244,570.62/400,522.32
  6. Step 6: Final answer
    x = 318,437.30

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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.