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Finding the Fourth Proportional to 438,188.40, 604,696.56 and 236,984.40

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Solution

The fourth proportional to 438,188.40, 604,696.56 and 236,984.40 is: 327,036.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,188.40 : 604,696.56 = 236,984.40 : x
  2. Step 2: Convert to fraction form
    438,188.40/604,696.56 = 236,984.40/x
  3. Step 3: Cross multiply
    438,188.40x = 604,696.56 × 236,984.40
  4. Step 4: Simplify right side
    438,188.40x = 143,303,651,453.66
  5. Step 5: Solve for x
    x = 143,303,651,453.66/438,188.40
  6. Step 6: Final answer
    x = 327,036.62

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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.