Home / 438,168.36-604,293.78-285,151.48

Finding the Fourth Proportional to 438,168.36, 604,293.78 and 285,151.48

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Solution

The fourth proportional to 438,168.36, 604,293.78 and 285,151.48 is: 393,262.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,168.36 : 604,293.78 = 285,151.48 : x
  2. Step 2: Convert to fraction form
    438,168.36/604,293.78 = 285,151.48/x
  3. Step 3: Cross multiply
    438,168.36x = 604,293.78 × 285,151.48
  4. Step 4: Simplify right side
    438,168.36x = 172,315,265,721.79
  5. Step 5: Solve for x
    x = 172,315,265,721.79/438,168.36
  6. Step 6: Final answer
    x = 393,262.68

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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.