Home / 438,121.56-604,607.79-236,917.56

Finding the Fourth Proportional to 438,121.56, 604,607.79 and 236,917.56

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Solution

The fourth proportional to 438,121.56, 604,607.79 and 236,917.56 is: 326,946.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,121.56 : 604,607.79 = 236,917.56 : x
  2. Step 2: Convert to fraction form
    438,121.56/604,607.79 = 236,917.56/x
  3. Step 3: Cross multiply
    438,121.56x = 604,607.79 × 236,917.56
  4. Step 4: Simplify right side
    438,121.56x = 143,242,202,363.79
  5. Step 5: Solve for x
    x = 143,242,202,363.79/438,121.56
  6. Step 6: Final answer
    x = 326,946.25

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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.