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Finding the Fourth Proportional to 406,710.26, 561,274.56 and 245,533.84

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Solution

The fourth proportional to 406,710.26, 561,274.56 and 245,533.84 is: 338,845.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,710.26 : 561,274.56 = 245,533.84 : x
  2. Step 2: Convert to fraction form
    406,710.26/561,274.56 = 245,533.84/x
  3. Step 3: Cross multiply
    406,710.26x = 561,274.56 × 245,533.84
  4. Step 4: Simplify right side
    406,710.26x = 137,811,898,011.11
  5. Step 5: Solve for x
    x = 137,811,898,011.11/406,710.26
  6. Step 6: Final answer
    x = 338,845.39

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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.