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Finding the Fourth Proportional to 406,421.28, 607,160.00 and 263,098.97

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Solution

The fourth proportional to 406,421.28, 607,160.00 and 263,098.97 is: 393,048.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,421.28 : 607,160.00 = 263,098.97 : x
  2. Step 2: Convert to fraction form
    406,421.28/607,160.00 = 263,098.97/x
  3. Step 3: Cross multiply
    406,421.28x = 607,160.00 × 263,098.97
  4. Step 4: Simplify right side
    406,421.28x = 159,743,166,273.91
  5. Step 5: Solve for x
    x = 159,743,166,273.91/406,421.28
  6. Step 6: Final answer
    x = 393,048.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.