Home / 1,086,688.80-1,630,025.10-328,528.80

Finding the Fourth Proportional to 1,086,688.80, 1,630,025.10 and 328,528.80

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Solution

The fourth proportional to 1,086,688.80, 1,630,025.10 and 328,528.80 is: 492,790.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,688.80 : 1,630,025.10 = 328,528.80 : x
  2. Step 2: Convert to fraction form
    1,086,688.80/1,630,025.10 = 328,528.80/x
  3. Step 3: Cross multiply
    1,086,688.80x = 1,630,025.10 × 328,528.80
  4. Step 4: Simplify right side
    1,086,688.80x = 535,510,190,072.88
  5. Step 5: Solve for x
    x = 535,510,190,072.88/1,086,688.80
  6. Step 6: Final answer
    x = 492,790.75

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Double scale
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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.