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Finding the Fourth Proportional to 354,669.20, 532,003.80 and 118,019.60

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Solution

The fourth proportional to 354,669.20, 532,003.80 and 118,019.60 is: 177,029.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,669.20 : 532,003.80 = 118,019.60 : x
  2. Step 2: Convert to fraction form
    354,669.20/532,003.80 = 118,019.60/x
  3. Step 3: Cross multiply
    354,669.20x = 532,003.80 × 118,019.60
  4. Step 4: Simplify right side
    354,669.20x = 62,786,875,674.48
  5. Step 5: Solve for x
    x = 62,786,875,674.48/354,669.20
  6. Step 6: Final answer
    x = 177,029.40

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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.