Home / 1,181,609.38-1,630,612.64-645,065.38

Finding the Fourth Proportional to 1,181,609.38, 1,630,612.64 and 645,065.38

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Solution

The fourth proportional to 1,181,609.38, 1,630,612.64 and 645,065.38 is: 890,185.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,609.38 : 1,630,612.64 = 645,065.38 : x
  2. Step 2: Convert to fraction form
    1,181,609.38/1,630,612.64 = 645,065.38/x
  3. Step 3: Cross multiply
    1,181,609.38x = 1,630,612.64 × 645,065.38
  4. Step 4: Simplify right side
    1,181,609.38x = 1,051,851,762,254.40
  5. Step 5: Solve for x
    x = 1,051,851,762,254.40/1,181,609.38
  6. Step 6: Final answer
    x = 890,185.69

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Double scale
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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.