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Finding the Fourth Proportional to 403,234.80, 556,427.88 and 233,480.40

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Solution

The fourth proportional to 403,234.80, 556,427.88 and 233,480.40 is: 322,182.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,234.80 : 556,427.88 = 233,480.40 : x
  2. Step 2: Convert to fraction form
    403,234.80/556,427.88 = 233,480.40/x
  3. Step 3: Cross multiply
    403,234.80x = 556,427.88 × 233,480.40
  4. Step 4: Simplify right side
    403,234.80x = 129,915,003,993.55
  5. Step 5: Solve for x
    x = 129,915,003,993.55/403,234.80
  6. Step 6: Final answer
    x = 322,182.02

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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.