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Finding the Fourth Proportional to 406,055.54, 560,416.68 and 233,940.72

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Solution

The fourth proportional to 406,055.54, 560,416.68 and 233,940.72 is: 322,872.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,055.54 : 560,416.68 = 233,940.72 : x
  2. Step 2: Convert to fraction form
    406,055.54/560,416.68 = 233,940.72/x
  3. Step 3: Cross multiply
    406,055.54x = 560,416.68 × 233,940.72
  4. Step 4: Simplify right side
    406,055.54x = 131,104,281,619.21
  5. Step 5: Solve for x
    x = 131,104,281,619.21/406,055.54
  6. Step 6: Final answer
    x = 322,872.79

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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.