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Finding the Fourth Proportional to 354,532.39, 531,355.11 and 177,088.93

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Solution

The fourth proportional to 354,532.39, 531,355.11 and 177,088.93 is: 265,411.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,532.39 : 531,355.11 = 177,088.93 : x
  2. Step 2: Convert to fraction form
    354,532.39/531,355.11 = 177,088.93/x
  3. Step 3: Cross multiply
    354,532.39x = 531,355.11 × 177,088.93
  4. Step 4: Simplify right side
    354,532.39x = 94,097,107,879.93
  5. Step 5: Solve for x
    x = 94,097,107,879.93/354,532.39
  6. Step 6: Final answer
    x = 265,411.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.