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Finding the Fourth Proportional to 400,674.34, 552,930.51 and 219,386.24

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Solution

The fourth proportional to 400,674.34, 552,930.51 and 219,386.24 is: 302,752.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,674.34 : 552,930.51 = 219,386.24 : x
  2. Step 2: Convert to fraction form
    400,674.34/552,930.51 = 219,386.24/x
  3. Step 3: Cross multiply
    400,674.34x = 552,930.51 × 219,386.24
  4. Step 4: Simplify right side
    400,674.34x = 121,305,342,805.53
  5. Step 5: Solve for x
    x = 121,305,342,805.53/400,674.34
  6. Step 6: Final answer
    x = 302,752.96

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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.