Home / 330,020.60-455,350.37-186,780.64

Finding the Fourth Proportional to 330,020.60, 455,350.37 and 186,780.64

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Solution

The fourth proportional to 330,020.60, 455,350.37 and 186,780.64 is: 257,713.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,020.60 : 455,350.37 = 186,780.64 : x
  2. Step 2: Convert to fraction form
    330,020.60/455,350.37 = 186,780.64/x
  3. Step 3: Cross multiply
    330,020.60x = 455,350.37 × 186,780.64
  4. Step 4: Simplify right side
    330,020.60x = 85,050,630,322.18
  5. Step 5: Solve for x
    x = 85,050,630,322.18/330,020.60
  6. Step 6: Final answer
    x = 257,713.10

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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.