Home / 439,095.41-657,397.60-287,469.08

Finding the Fourth Proportional to 439,095.41, 657,397.60 and 287,469.08

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Solution

The fourth proportional to 439,095.41, 657,397.60 and 287,469.08 is: 430,388.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,095.41 : 657,397.60 = 287,469.08 : x
  2. Step 2: Convert to fraction form
    439,095.41/657,397.60 = 287,469.08/x
  3. Step 3: Cross multiply
    439,095.41x = 657,397.60 × 287,469.08
  4. Step 4: Simplify right side
    439,095.41x = 188,981,483,266.21
  5. Step 5: Solve for x
    x = 188,981,483,266.21/439,095.41
  6. Step 6: Final answer
    x = 430,388.20

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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.