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Finding the Fourth Proportional to 539,509.60, 744,066.16 and 324,609.51

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Solution

The fourth proportional to 539,509.60, 744,066.16 and 324,609.51 is: 447,686.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,509.60 : 744,066.16 = 324,609.51 : x
  2. Step 2: Convert to fraction form
    539,509.60/744,066.16 = 324,609.51/x
  3. Step 3: Cross multiply
    539,509.60x = 744,066.16 × 324,609.51
  4. Step 4: Simplify right side
    539,509.60x = 241,530,951,605.18
  5. Step 5: Solve for x
    x = 241,530,951,605.18/539,509.60
  6. Step 6: Final answer
    x = 447,686.11

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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.