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Finding the Fourth Proportional to 400,347.96, 552,471.66 and 219,059.16

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Solution

The fourth proportional to 400,347.96, 552,471.66 and 219,059.16 is: 302,296.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,347.96 : 552,471.66 = 219,059.16 : x
  2. Step 2: Convert to fraction form
    400,347.96/552,471.66 = 219,059.16/x
  3. Step 3: Cross multiply
    400,347.96x = 552,471.66 × 219,059.16
  4. Step 4: Simplify right side
    400,347.96x = 121,023,977,763.41
  5. Step 5: Solve for x
    x = 121,023,977,763.41/400,347.96
  6. Step 6: Final answer
    x = 302,296.98

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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.