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Finding the Fourth Proportional to 288,543.75, 434,785.14 and 237,105.51

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Solution

The fourth proportional to 288,543.75, 434,785.14 and 237,105.51 is: 357,276.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,543.75 : 434,785.14 = 237,105.51 : x
  2. Step 2: Convert to fraction form
    288,543.75/434,785.14 = 237,105.51/x
  3. Step 3: Cross multiply
    288,543.75x = 434,785.14 × 237,105.51
  4. Step 4: Simplify right side
    288,543.75x = 103,089,951,569.54
  5. Step 5: Solve for x
    x = 103,089,951,569.54/288,543.75
  6. Step 6: Final answer
    x = 357,276.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.