Home / 438,161.36-604,284.14-285,144.48

Finding the Fourth Proportional to 438,161.36, 604,284.14 and 285,144.48

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Solution

The fourth proportional to 438,161.36, 604,284.14 and 285,144.48 is: 393,253.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,161.36 : 604,284.14 = 285,144.48 : x
  2. Step 2: Convert to fraction form
    438,161.36/604,284.14 = 285,144.48/x
  3. Step 3: Cross multiply
    438,161.36x = 604,284.14 × 285,144.48
  4. Step 4: Simplify right side
    438,161.36x = 172,308,285,446.83
  5. Step 5: Solve for x
    x = 172,308,285,446.83/438,161.36
  6. Step 6: Final answer
    x = 393,253.04

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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.