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Finding the Fourth Proportional to 539,512.60, 744,070.30 and 324,612.51

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Solution

The fourth proportional to 539,512.60, 744,070.30 and 324,612.51 is: 447,690.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,512.60 : 744,070.30 = 324,612.51 : x
  2. Step 2: Convert to fraction form
    539,512.60/744,070.30 = 324,612.51/x
  3. Step 3: Cross multiply
    539,512.60x = 744,070.30 × 324,612.51
  4. Step 4: Simplify right side
    539,512.60x = 241,534,527,699.45
  5. Step 5: Solve for x
    x = 241,534,527,699.45/539,512.60
  6. Step 6: Final answer
    x = 447,690.24

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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.