Home / 382,609.14-528,058.35-221,569.38

Finding the Fourth Proportional to 382,609.14, 528,058.35 and 221,569.38

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Solution

The fourth proportional to 382,609.14, 528,058.35 and 221,569.38 is: 305,799.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,609.14 : 528,058.35 = 221,569.38 : x
  2. Step 2: Convert to fraction form
    382,609.14/528,058.35 = 221,569.38/x
  3. Step 3: Cross multiply
    382,609.14x = 528,058.35 × 221,569.38
  4. Step 4: Simplify right side
    382,609.14x = 117,001,561,213.32
  5. Step 5: Solve for x
    x = 117,001,561,213.32/382,609.14
  6. Step 6: Final answer
    x = 305,799.18

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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.