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Finding the Fourth Proportional to 406,349.72, 560,766.72 and 245,173.58

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Solution

The fourth proportional to 406,349.72, 560,766.72 and 245,173.58 is: 338,342.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,349.72 : 560,766.72 = 245,173.58 : x
  2. Step 2: Convert to fraction form
    406,349.72/560,766.72 = 245,173.58/x
  3. Step 3: Cross multiply
    406,349.72x = 560,766.72 × 245,173.58
  4. Step 4: Simplify right side
    406,349.72x = 137,485,184,287.26
  5. Step 5: Solve for x
    x = 137,485,184,287.26/406,349.72
  6. Step 6: Final answer
    x = 338,342.02

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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.