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Finding the Fourth Proportional to 292,394.25, 403,505.28 and 158,258.25

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Solution

The fourth proportional to 292,394.25, 403,505.28 and 158,258.25 is: 218,397.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,394.25 : 403,505.28 = 158,258.25 : x
  2. Step 2: Convert to fraction form
    292,394.25/403,505.28 = 158,258.25/x
  3. Step 3: Cross multiply
    292,394.25x = 403,505.28 × 158,258.25
  4. Step 4: Simplify right side
    292,394.25x = 63,858,039,478.56
  5. Step 5: Solve for x
    x = 63,858,039,478.56/292,394.25
  6. Step 6: Final answer
    x = 218,397.04

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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.