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Finding the Fourth Proportional to 438,003.56, 604,445.64 and 236,799.56

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Solution

The fourth proportional to 438,003.56, 604,445.64 and 236,799.56 is: 326,783.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,003.56 : 604,445.64 = 236,799.56 : x
  2. Step 2: Convert to fraction form
    438,003.56/604,445.64 = 236,799.56/x
  3. Step 3: Cross multiply
    438,003.56x = 604,445.64 × 236,799.56
  4. Step 4: Simplify right side
    438,003.56x = 143,132,461,595.92
  5. Step 5: Solve for x
    x = 143,132,461,595.92/438,003.56
  6. Step 6: Final answer
    x = 326,783.79

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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.